mirror of https://github.com/tLDP/LDP
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@ -42,7 +42,7 @@ C++ Programming HOW-TO
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<author>Al Dev (Alavoor Vasudevan)
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<htmlurl url="mailto:alavoor@yahoo.com"
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name="alavoor@yahoo.com">
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<date>v40.4, 19 Sep 2001
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<date>v40.5, 12 Dec 2001
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<abstract>
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This document provides a comprehensive list of C++ URL
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pointers, links to C++ online textbooks, and programming tips on C++.
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@ -106,8 +106,8 @@ a textbook on C++ for reference from online bookstores like
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<p>
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C++ is one of the most powerful language and will be used for a long time in the future
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inspite of emergence of Java. C++ runs <bf>extremely fast</bf> and is
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in fact <bf> 10 to 20 times FASTER than </bf> Java. Java runs very slow
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because it is a byte-code-interpreted language running on top of "virtual machine".
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in fact <bf> 10 to 20 times FASTER than </bf> Java.
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Java byte-code is slower when running in a VM than the equivalent natively compiled code.
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Java runs faster with JIT (Just-In-Time) compiler, but it is still slower than C++. And optimized
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C++ program is about <bf>3 to 4 times faster</bf> than Java (with JIT compiler).
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Then, why do people use Java? Because it is pure object oriented and is
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@ -128,23 +128,19 @@ and tips to reduce the debugging time.
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-->
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<sect1>Which one Ada95, "C", "C++" or Java ??
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<sect1>Which one Ada95, "C", "C++", Java or PHP ??
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<p>
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Language choice is very difficult. There are too many parameters - people, people skills,
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cost, tools, politics (even national politics) and influence
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of businessmen/commercial companies.
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The best language based on technical
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merits does not get selected simply due to political decisions!
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The best language based on technical merits does not get selected simply
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due to political decisions!
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Java is much closer to Ada95 than C++. Java is derived from Ada95.
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Ada95 gets the maximum points as per David Wheeler's
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See the language comparison chart of David Wheeler at
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<url name="Ada comparison chart" url="http://www.adahome.com/History/Steelman/steeltab.htm">.
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Ada got 93%, Java 72%, C++ 68% and C got 53%. C++ and Java
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are closer in points(only 4% difference), hence Java <bf>is not</bf> a very big revolution
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as compared to C++. On other hand, Ada is a very big revolution and improvement over C++.
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The scores are like 4 students taking exams
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and student with highest score is Ada (93%). Who knows? Perhaps in
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future Ada95 will replace Java!!
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are closer in points (only 4% difference), hence Java <bf>is not</bf> a very big revolution
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as compared to C++.
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Development costs of Ada is half of C++ as per
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<url name="Stephen F. Zeigler" url="http://sw-eng.falls-church.va.us/AdaIC/docs/reports/cada/cada_art.html">.
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Ada95 is available at -
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@ -153,10 +149,7 @@ Ada95 is available at -
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<item> Google <url name="Ada index" url="http://directory.google.com/Top/Computers/Programming/Languages/Ada">
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</itemize>
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Since C++ programmers are abundant, it is recommended you do programming
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in object-oriented "C++" for all your
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application programming or general purpose programming. You can take full
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advantage of object oriented facilities of C++. The C++ compiler is lot
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The C++ compiler is lot
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more complex than "C" compiler and C++ programs may run bit slower than "C"
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programs. But speed difference between "C" and "C++" is very minute - it
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could be few milli-seconds which may have little impact
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@ -165,8 +158,7 @@ Since computer hardware is becoming cheaper and faster and memory
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'RAM' is getting faster and cheaper, it is worth doing code in C++ rather than
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"C" as time saved in clarity and re-usability of C++ code
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offsets the slow speed.
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Compiler optimizer options like -O or -O3 can speed up C++/C
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which is not available in Java.
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Use compiler optimizer options like -O or -O3 to speed up C++ or C programs.
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Nowadays, "C" language is primarily used for "systems programming" to develop
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operating systems, device drivers etc..
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@ -176,28 +168,30 @@ given in this howto, you can code in C++ which "exactly" looks like Java.
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This document tries to close the gap between C++ and Java, by imitating Java
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classes in C++</it></bf>
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If you want to bypass edit-compile-debug-compile cycle of C++ then
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see scripting languages like PHP which can be used for general purpose programming.
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Scripting languages like PHP, PERL enable rapid application development. PHP has some
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features of object-oriented programming.
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PHP is at <url url="http://www.linuxdoc.org/HOWTO/PHP-HOWTO.html">.
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Java is platform independent language more suitable for developing GUI running
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inside web-browsers (Java applets) but runs very slow. Prefer to
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use web-server-side programming "Fast-CGI" with C++ and HTML, DHTML,
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inside web-browsers (Java applets) but it runs very slow.
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You should prefer to
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use web-server-side programming with PHP, HTML, DHTML,
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XML to get better performance. Hence, the golden rule is <it>"Web-server side programming
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use C++ and web-client side (browser) programming use Java applets"</it>.
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use PHP and web-client side (browser) programming use Java applets"</it>.
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The reason is - the server-side OS (Linux) is under your control
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and never changes, but you
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will never know what the client side web-browser OS is. It can be Internet appliance device (embedded linux+netscape) or computers running Windows 95/98/NT/2000
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will never know what the client side web-browser OS is. It can be
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Internet appliance device (embedded linux+netscape) or computers running Windows 95/98/NT/2000
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or Linux, Apple Mac, OS/2, Netware, Solaris etc..
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The advantage of Java language is that you can
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create "Applets (GUI)" which can run on any client OS platform.
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Java was created to replace the Microsoft Windows 95/NT GUI APIs like
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MS Visual Basic or MS Visual C++.
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In other words - "Java is the cross-platform Windows-GUI
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API language of next century".
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Many web-browsers like Netscape supports Java applets and web-browser like
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Hot Java is written in java itself.
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But the price you pay for cross-platform
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portability is the performance, applications written in Java run very slow.
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Hence, Java runs on "client" and C++ runs on servers.
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Hence, Java runs on "client" and PHP/C++ runs on servers.
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<!--
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*******************************************
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************ End of Section ***************
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@ -379,7 +373,7 @@ string class by simply inheriting from these string classes -
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<item> String class given in this document
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<ref id="Appendix A" name="Appendix A String.h">
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<p>
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<item> GNU string class
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<item> Standard C++ Library String class (GNU string class implementation)
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<itemize>
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<item> GNU C++ Library - Univ of Tech, Sydney
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<url url="http://www.socs.uts.edu.au/doc/gnuinfo/libg++/libg++_18.html"> and
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@ -395,11 +389,13 @@ string class by simply inheriting from these string classes -
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<url name="user's guide" url="http://www.math.utah.edu/docs/info/libg++_toc.html">
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</itemize>
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<p>
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<item> Qt String class at <url url="http://doc.trolltech.com/qstring.html">
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<item> ANSI string class (ISO string class) at <url url="http://www.msoe.edu/eecs/cese/resources/stl/string.htm">
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<p>
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<item> If you are using Qt external library then see Qt String class at <url url="http://doc.trolltech.com/qstring.html">
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mirror at
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<url url="http://www.cs.berkeley.edu/~dmartin/qt/qstring.html">
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<p>
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<item> If none of these alternatives are suitable, you can build
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<item> If none of these are suitable, you can build
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your own string class. You can start with one or more of the
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pre-built classes listed above (by using single or multiple inheritance.)
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</itemize>
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@ -416,7 +412,8 @@ pre-built classes listed above (by using single or multiple inheritance.)
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As mentioned above, you can build your own custom string class from the
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pre-built classes by single or multiple inheritance. In this section
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we will build a sample custom string class by using multiple inheritance,
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inheriting from the GNU string class and the string class presented in Appendix H.
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inheriting from the GNU string class (Standard C++ Library) and
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the string class presented in Appendix H.
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Start by downloading the sample file 'string_multi.h' from
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<ref id="Appendix A">
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@ -1253,7 +1250,7 @@ in all the files where you do include String.h, insert these lines:
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#include "ConflictingString.h" // This also has String class...
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// All your code goes here...
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main()
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int main()
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{
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String_somethingelse_which_I_want aa;
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String bb; // This string class from conflicting string class
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@ -1713,13 +1710,14 @@ mirror <url name="JavaNotes" url="http://matrix.mvhs.fuhsd.org/~deruiter/javanot
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<chapt> C++ Coding Standards
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<chapt> C++ Coding Conventions
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-->
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<sect> C++ Coding Standards
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<sect> C++ Coding Conventions
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<p>
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Coding standard is very essential for readability and maitainence of programs. And
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it also greatly inproves the productivity of the programmer. The GNU
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C++ compiler <bf>must enforce</bf> coding discipline. The following is suggested -
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Coding convention is very essential for readability and maintenance of programs. And
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it also greatly inproves the productivity of the programmer.
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Coding convention is required for good coding discipline.
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The following is suggested -
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inside class definition:
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<itemize>
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<item> All public variables must begin with <bf>m</bf> like <bf>mFooVar</bf>.
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@ -1738,10 +1736,7 @@ uppercase after <bf>m</bf> like F in <bf>mFooVar</bf>.
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<item>Private variables <bf>mvpFooVar</bf> and methods with v like vFooNum()
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</itemize>
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</itemize>
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The compiler should generate error if the code does not follow above standard.
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The C++ compiler can provide a flag option to bypass strict coding standard to compile
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old source code, and for all new code being developed will follow the
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uniform world-wide coding standard.
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Uniform world-wide coding convention for C++ language will help better programming.
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In the sample code given below <bf>t</bf> stands for <bf>protected</bf>,
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<bf>v</bf> stands for <bf>private</bf>,
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@ -2407,9 +2402,9 @@ says how many elements there are in the vector. What will be printed out by the
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<code>
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<vector-size.cc>=
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#include <iostream.h>
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#include <vector.h>
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#include <vector> // vector.h
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void main()
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int main()
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{
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vector<int> v1;
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vector<int> v2(10);
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@ -2428,9 +2423,9 @@ and false prints as 0)?
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<code>
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<vector-empty.cc>=
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#include <iostream.h>
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#include <vector.h>
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#include <vector> // vector.h
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void main()
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int main()
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{
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vector<int> v1;
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vector<int> v2(10);
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@ -2499,10 +2494,10 @@ Here is a simple example of the use of [].
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<code>
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<vector-access.cc>=
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#include <vector.h>
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#include <vector> // vector.h
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#include <iostream.h>
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void main()
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int main()
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{
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vector<int> v1(5);
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int x;
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@ -2538,9 +2533,9 @@ structure for which they are more efficient.
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<code>
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<vector-mod.cc>=
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#include <iostream.h>
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#include <vector.h>
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#include <vector> // vector.h
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void main()
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int main()
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{
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vector<int> v;
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@ -2634,9 +2629,9 @@ Here is an illustration of how to use iterators with vectors.
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<code>
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<vector-iterator.cc>=
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#include <iostream.h>
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#include <vector.h>
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#include <vector> // vector.h
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void main()
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int main()
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{
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vector<int> v(10);
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first is ``less'' than the second
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@ -2693,10 +2688,10 @@ The following code illustrates the third example above.
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<code>
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<vector-comp.cc>=
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#include <vector.h>
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#include <vector> // vector.h
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#include <iostream.h>
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void main()
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int main()
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{
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vector<int> v1;
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vector<int> v2;
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@ -2788,7 +2783,7 @@ note that the set's contents are printed out in ascending order even though they
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#include <iostream.h>
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#include <set.h>
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void main()
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int main()
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{
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set<int, less<int> > s;
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set<int, less<int> >::iterator i;
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@ -2833,7 +2828,7 @@ public:
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};
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// This can be used with any T for which * is defined.
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void main()
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int main()
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{
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// Create some function objects.
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square<double> f1;
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@ -2911,7 +2906,7 @@ public:
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{ return (c1.field2() < c2.field2()); }
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};
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void main()
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int main()
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{
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set<myClass, less<myClass> > s1;
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set<myClass, less<myClass> >::iterator i;
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@ -3006,7 +3001,7 @@ arguments, empty() returns true or false and size() returns an integer.
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#include <set.h>
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#include printset.h
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void main()
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int main()
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{
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set<int, less<int> > s;
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@ -3047,7 +3042,7 @@ Two sets may be checked for equality by using ==. This equality test works by te
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#include <set.h>
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#include printset.h
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void main()
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int main()
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{
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set<int, less<int> > s1, s2 ,s3;
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@ -3102,7 +3097,7 @@ The following example illustrates these various forms.
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#include <set.h>
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#include printset.h
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void main()
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int main()
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{
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set<int, less<int> > s1;
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@ -3198,7 +3193,7 @@ Which might be used as follows.
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#include printset.h
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#include setmember.h
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void main()
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int main()
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{
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set<int, less<int> > s;
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for (int i= 0; i<10; i++) s.insert(i);
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@ -3278,7 +3273,7 @@ Here is an example illustrating all these operations.
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#include <iterator.h>
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#include printset.h
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void main()
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int main()
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{
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typedef set<int, less<int> > intSet;
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|
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@ -42,7 +42,7 @@ C-C++ Beautifier HOW-TO
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<author>Al Dev (Alavoor Vasudevan)
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<htmlurl url="mailto:alavoor@yahoo.com"
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name="alavoor@yahoo.com">
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<date>v15.2, 12 Oct 2001
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<date>v15.3, 10 Dec 2001
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<abstract>
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This document will help you to format (beautify) the C/C++ programs so
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that it is more readable and confirms to your site C/C++ coding standards.
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@ -106,6 +106,9 @@ and site at <url url="http://users.erols.com/astronaut/vim/#vimlinks_src">
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<item> GC! GreatCode! is a powerful C/C++ source code beautifier
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Windows 95/98/NT/2000 <url url="http://perso.club-internet.fr/cbeaudet">
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<item> CbVan for C, C++ and Java at <url url="http://www.geocities.com/~starkville/main.html">
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<item> Artistic Style beautifier for C, C++, Java at
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<url url="http://sourceforge.net/projects/astyle">
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<url url="http://astyle.sourceforge.net">.
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</itemize>
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I used BCPP to format the C++ programs and it worked fine for me. You
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may want to check other tools and use the one which you may like the most.
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@ -229,6 +232,7 @@ HTML, SQL, Java, Perl, Fortran.
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<item> Java beautify <url name="percolator" url="http://www2.blaze.ca/~jspeton/percolator">
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<item> Java list <url url="http://www.java.about.com/compute/java/library/weekly/aa102499.htm">
|
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<item> Java html present <url name="VasJava2HTML" url="http://www.chez.com/vasile/java2/VasJava2HTML.html">
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<item> Java code colorifier and beautifier <url url="http://www.mycgiserver.com/~lisali/jccb">
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<p>
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<item> Perl : <url url="http://www.consultix-inc.com/www.consultix-inc.com/talk.htm">
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<item> Perl : <url url="http://www.consultix-inc.com/www.consultix-inc.com/perl_beautifier.html">
|
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|
|
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@ -52,7 +52,7 @@ DISKLESS NODES HOW-TO for Linux
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<htmlurl url="mailto:gero@gkminix.han.de"
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name="gero@gkminix.han.de">
|
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<date>v22.3, 08 Nov 2001
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<date>v22.4, 12 Dec 2001
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<abstract>
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This document describes how to set up a diskless Linux box.
|
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As technology is advancing rapidly, network-cards are becoming cheaper and much
|
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|
|
@ -118,7 +118,7 @@ done! For details see the "Live Linux CDROM" chapter in this document.
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|||
The other option is using a EPROM, but this will
|
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take extra work to be done on the client and the server box.
|
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If you want to go for EPROM method, I recommend you to
|
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simply buy Diskless Linux computers from the manufacturers as given later.
|
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simply buy Diskless Linux computers from the manufacturers as given in the following chapters.
|
||||
<!--
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||||
*******************************************
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************ End of Section ***************
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|
|
@ -136,8 +136,8 @@ be the product of this century and in the next century.
|
|||
The diskless linux computers will be very successful because of the
|
||||
availability of very high-speed network cards at
|
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very low prices. Today 100 Megabit
|
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per second (12.5 MB per sec transfer rate) network cards are
|
||||
common and in about 1 to 2 years 1000 MBit (125 MB per sec transfer rate)
|
||||
per second (11.92 Megabytes per sec transfer rate) network cards are
|
||||
common and in about 1 to 2 years 1000 MBit (119.2 Megabytes per sec transfer rate)
|
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network cards will become very cheap and will be the standard.
|
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|
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In near future, Monitor manufacturers will place
|
||||
|
|
@ -148,6 +148,15 @@ have outlet for mouse, keyboard, network RJ45 and power supply.
|
|||
|
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The following are benefits of using diskless computers -
|
||||
<itemize>
|
||||
<item> Sharing of central server RAM memory by many diskless computer users.
|
||||
For example, if many users are using a web browser then in the server RAM there will
|
||||
be only one copy of web browser in the RAM. In case Windows 95 PCs, many
|
||||
users need to have individual copy of web browser
|
||||
in local RAM and hence there is wastage of RAM space.
|
||||
Since the RAM in server is "shared" by hundreds of diskless clients, this will be a
|
||||
huge savings in the cost of memory.
|
||||
You can pool the RAM memory by shifting memory from clients to server.
|
||||
<p>
|
||||
<item> Diskless Linux computers can run BOTH MS Windows 95/NT and linux programs.
|
||||
<p>
|
||||
<item> Total cost of ownership is very low in case of Diskless computers.
|
||||
|
|
@ -184,12 +193,6 @@ Fault tolerance of hard disk failure is possible by using RAID on main server.
|
|||
<item> Server can have 64 bit CPU SMP box having many CPUs or even
|
||||
linux super-computers. CPU power can be shared by many diskless computer users
|
||||
<p>
|
||||
<item> Sharing of central server RAM memory by many diskless computer users.
|
||||
For example, if many users are using a web browser then in the server RAM there will
|
||||
be only one copy of web browser in the RAM. In case Windows 95 PCs, many
|
||||
users need to have individual copy of web browser
|
||||
in local RAM and hence there is wastage of RAM space.
|
||||
<p>
|
||||
<item> Diskless computers are extremely fast because program loading time is
|
||||
completely eliminated. For example, if the server loads the StarOffice suite
|
||||
into memory due to request from one diskless user then if another diskless user wants to
|
||||
|
|
@ -217,7 +220,8 @@ parallel ports, serial ports etc..
|
|||
RAM and low-cost CPU. The server has lots of memory and many powerful CPUs.
|
||||
<p>
|
||||
<item> Can operate in places like factory floor where a hard disk might be too fragile.
|
||||
|
||||
<p>
|
||||
<item> Diskless nodes work even on wide area network.
|
||||
</itemize>
|
||||
<!--
|
||||
*******************************************
|
||||
|
|
@ -292,6 +296,35 @@ drives from different vendors. The top speed CDROM drive is from Kenwood at
|
|||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
Problem: Swap over NFS may not work (as per man swapon)???
|
||||
|
||||
<sect1> Low Memory on Diskless Node
|
||||
<p>
|
||||
If your diskless node has very low memory, say less than 16 MB then boot the
|
||||
Live Linux in command line console mode and setup the NFS and mount the hard disk
|
||||
partition of the main Linux server. After mounting remote hard disk with NFS,
|
||||
setup a swap file on the NFS mount point.
|
||||
|
||||
To setup a swap file, it is necessary to create that file before initializing it
|
||||
with mkswap.
|
||||
Note that a swap file must not contain any holes (so, using cp to create the
|
||||
file is not acceptable).
|
||||
<code>
|
||||
bash$ su - root
|
||||
bash# man mkswap
|
||||
|
||||
Assuming that remotelinux hard disk is mounted on /mnt/remotelinux
|
||||
bash# cd /mnt/remotelinux
|
||||
bash# dd if=/dev/zero of=swapfile bs=1024 count=65536
|
||||
bash# man swapon
|
||||
bash# swapon
|
||||
</code>
|
||||
-->
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
-->
|
||||
<sect1> Build a Live Linux CDROM
|
||||
<p>
|
||||
|
|
@ -491,8 +524,6 @@ Assuming that you've got cdrecord installed and configured for your cd-writer ty
|
|||
Boot the cd and test it
|
||||
|
||||
Well the title of this paragraph says it all;)
|
||||
|
||||
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
|
|
@ -546,6 +577,77 @@ interested in reading this entire document.
|
|||
|
||||
|
||||
|
||||
<chapt> Internet Cafe and Financial Banking with "Diskless Linux" <label id="internetcafe">
|
||||
-->
|
||||
<sect> Internet Cafe and Financial Banking with "Diskless Linux" <label id="internetcafe">
|
||||
<p>
|
||||
You can set up Internet Cafe with diskless Linux.
|
||||
Internet cafes are immensely popular in developing countries like India, Thailand, China.
|
||||
In India Internet cafes are also serving as financial banking centers where people
|
||||
go to pay bills, trade stocks, transfer money and do online banking.
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
-->
|
||||
<sect1> Setup IP Masquerading, IP Netfilter and Squid
|
||||
<p>
|
||||
To connect the diskless nodes to the Internet, you should setup the IP Masquerading
|
||||
on the main Linux server which is connected to the Internet. The main Linux server
|
||||
will act like a proxy server for the diskless nodes.
|
||||
|
||||
<bf>Configure Firewall and IP Masquerading : </bf>
|
||||
For Linux kernel version 2.4 and above, the firewall and IP Masquerading is
|
||||
implemented by NetFilter package. Hence in kernel config you should enable
|
||||
Netfilter and run the Firewall/IPMasq script. Download the scripts from
|
||||
<url name="Firewall-IPMasq scripts" url="http://www.BoingWorld.com/workshops/linux/iptables-tutorial">
|
||||
, main page of Netfilter is at
|
||||
<url url="http://netfilter.samba.org">.
|
||||
Related materials at <url name="firewalling-matures" url="http://www.linuxsecurity.com/feature_stories/kernel-netfilter.html">
|
||||
and <url name="Netfilter-FAQ" url="http://netfilter.filewatcher.org/netfilter-faq.html">.
|
||||
|
||||
For kernel version below 2.4 you should install the firewall rpms from
|
||||
<url name="rpmfind.net" url="http://rpmfind.net/linux/rpm2html/search.php?query=firewall">
|
||||
or <url name="firewall.src.rpm" url="http://rpmfind.net/linux/RPM/contrib/noarch//SRPMS//firewall-2.2-3.src.html">.
|
||||
|
||||
See also
|
||||
<url url="http://www.linuxdoc.org/HOWTO/Kernel-HOWTO.html">.
|
||||
|
||||
<bf>Setup Squid : </bf>
|
||||
You should install Squid on the main Linux server which can act as a
|
||||
proxy for the diskless nodes.
|
||||
|
||||
Squid is a high-performance proxy caching server for Web clients,
|
||||
supporting FTP, gopher, and HTTP data objects. Unlike traditional
|
||||
caching software, Squid handles all requests in a single,
|
||||
non-blocking, I/O-driven process. Squid keeps meta data and especially
|
||||
hot objects cached in RAM, caches DNS lookups, supports non-blocking
|
||||
DNS lookups, and implements negative caching of failed requests.
|
||||
|
||||
Squid consists of a main server program squid, a Domain Name System
|
||||
lookup program (dnsserver), a program for retrieving FTP data
|
||||
(ftpget), and some management and client tools.
|
||||
|
||||
Install the Squid from the Linux cdrom -
|
||||
<code>
|
||||
bash# rpm -i /mnt/cdrom/RPMS/squid*.rpm
|
||||
</code>
|
||||
You can see the port number where Squid runs by viewing the file
|
||||
/etc/services and search for word "squid".
|
||||
Says something like 'squid 3128/tcp # squid web proxy'
|
||||
|
||||
On the diskless nodes bring up the web browser and pick Configure
|
||||
and check the "use proxy". Put the hostname of main Linux server and
|
||||
port number as 3128. Now the diskless node can surf the internet web pages!
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
|
||||
|
||||
|
||||
<chapt> Diskless Computer for Microsoft Windows 95/NT !!
|
||||
-->
|
||||
<sect> Diskless Computer for Microsoft Windows 95/NT !!
|
||||
|
|
|
|||
|
|
@ -45,7 +45,7 @@ PHP HOW-TO
|
|||
" name="
|
||||
alavoor@yahoo.com
|
||||
">
|
||||
<date>v25.6, 04 Oct 2001
|
||||
<date>v25.8, 12 Dec 2001
|
||||
<abstract>
|
||||
This document tells you howto develop PHP programs and also to migrate all the
|
||||
Windows 95 GUI applications to powerful PHP + HTML + DHTML + XML + Java applets + Javascript.
|
||||
|
|
@ -75,17 +75,39 @@ and mainframe operating systems and on all operating systems where "C" compiler
|
|||
<p>
|
||||
<it><bf>Definition:</bf> PHP is a simple, object-oriented,
|
||||
interpreted, robust, secure, very high-performance, architecture neutral, portable,
|
||||
dynamic scripting language. Everything inside "class"
|
||||
keyword in PHP will be identical to Java language (in near future). And PHP is
|
||||
designed such that it is 10 times faster than Java, since there is no virtual machine.
|
||||
PHP is the international standard general purpose object oriented scripting language.
|
||||
dynamic scripting language. PHP has "class" keyword similar to Java's "class" keyword.
|
||||
And PHP is designed such that it is 5 times faster than Java, since there is no virtual machine.
|
||||
PHP is very fast becoming a standard, general purpose, object oriented scripting language.
|
||||
PHP is not only meant for web applications but also can be used
|
||||
for developing general applications.
|
||||
</it>
|
||||
|
||||
PHP is a very powerful scripting language.
|
||||
PHP stands for 'Hypertext Pre-Processor' and is a server
|
||||
side HTML scripting/programming language.
|
||||
PHP is C-like Web scripting language runs on Apache, Netscape/iPlanet, and Microsoft IIS Web
|
||||
servers.
|
||||
PHP is a tool that lets you create dynamic web pages. PHP-enabled web pages
|
||||
are treated just like regular HTML pages and you can create and edit them
|
||||
the same way you normally create regular HTML pages.
|
||||
PHP lets you write simple scripts right in your HTML files much like
|
||||
JavaScript does, except, unlike JavaScript PHP is not
|
||||
browser-dependant. JavaScript is a client-side html-embedded
|
||||
language while PHP is a server-side language.
|
||||
PHP is similar in concept to Netscape's LiveWire Pro product and Microsoft's ASP and
|
||||
Sun Microsystem's JSP.
|
||||
|
||||
PHP is not only used for creating web applications, but also for creating general standalone
|
||||
applications.
|
||||
|
||||
PHP's strength are :
|
||||
<itemize>
|
||||
<item> Open source
|
||||
<item> Easily learned syntax
|
||||
<item> Broad database connectivity
|
||||
<item> Massive library of contributed extensions
|
||||
<item> General purpose scripting language much superior to PERL, VB script, ASP, JSP.
|
||||
</itemize>
|
||||
|
||||
PHP was kept the <bf>"top secret and strictly confidential"</bf>
|
||||
computer language by many companies in the world, but now had become
|
||||
|
|
@ -97,12 +119,12 @@ highly confidential matter not disclosing to outsiders (competitors).
|
|||
PHP will storm the entire world and will take the IT industry by surprise!!
|
||||
The power of PHP is that it is <bf>cross-platform and runs everywhere!!</bf>
|
||||
It runs on Linux, Windows 95/98/NT, Windows 2000, Solaris, HPUX and all
|
||||
flavors of unix. PHP is write once and deploy anywhere and everywhere.
|
||||
flavors of UNIX. PHP is write once and deploy anywhere and everywhere.
|
||||
It runs on many web-servers like Apache, Microsoft IIS, etc..
|
||||
|
||||
PHP runs 5 to 20 times faster than Java!! In actual benchmarks, PHP was
|
||||
PHP runs 5 to 20 times faster than Java!! In actual benchmarks, PHP was about
|
||||
3.7 times faster than JSP (see <ref id="benchmarks">). PHP is extremely easy to use
|
||||
and you can develop very complex web/e-commerce applications
|
||||
and you can develop very complex web/e-commerce/general-standalone applications
|
||||
very rapidly in a very short period of time.
|
||||
(In future PHP language will imitate most features of Java language and
|
||||
Java programmers will <bf>love</bf> PHP. And PHP will have java keywords
|
||||
|
|
@ -115,17 +137,22 @@ best features from Java, C++, PERL and C.
|
|||
PHP is the <bf>real gem</bf> of all the scripting/programming languges
|
||||
and will soon become the "MECCA" for programmers world-wide!!
|
||||
PHP has a huge user base and a large
|
||||
developer base as it runs on both Window95/NT/2000 and all flavors of unixes.
|
||||
developer base as it runs on both Window95/NT/2000/XP and all flavors of UNIX'es.
|
||||
|
||||
A big surprise is waiting for us - <bf>Most probably PHP will be the
|
||||
computer language/scripting language of the 21st century!!</bf>
|
||||
|
||||
PHP can be compiled and optimized to make it run even faster by using the
|
||||
Zend Optimizer. Zend optimizer is integrated with PHP in PHP version 4.0.
|
||||
First, you will write your application in PHP scripting language
|
||||
during development, testing and debugging. Once the project is ready for
|
||||
deployment you will use the Zend compiler to
|
||||
compile the PHP to create executable which will run very fast.
|
||||
|
||||
You would normally use a combination of
|
||||
PHP (70% code) + HTML/DHTML/XML (25% code) + Javascript (5% code client side validations)
|
||||
for your e-commerce projects.
|
||||
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
|
|
@ -138,7 +165,7 @@ for your e-commerce projects.
|
|||
-->
|
||||
<sect> PHP runs on Microsoft Windows!!<label id = "mswin">
|
||||
<p>
|
||||
PHP initially started on unix platform, but it is very portable and
|
||||
PHP initially started on UNIX platform, but it is very portable and
|
||||
runs on MS Windows and MS IIS webserver.
|
||||
Today PHP has a large user base on MS Windows 2000/NT/95/98,
|
||||
You will find a huge collection of tools for PHP under MS Windows platform.
|
||||
|
|
@ -146,12 +173,12 @@ You will find a huge collection of tools for PHP under MS Windows platform.
|
|||
Many PHP programmers develop code on MS Windows and deploy on large linux servers
|
||||
like IBM mainframe running linux, Compaq DEC Alpha and Sun sparc.
|
||||
|
||||
A great advantage is that since PHP also runs on Unix/Linux, developers on
|
||||
unix platform "cash on" the user base of PHP under MS windows as the PHP code developed
|
||||
under MS Windows can be used on unix/linux without any code change!!
|
||||
A great advantage is that since PHP also runs on UNIX/Linux, developers on
|
||||
UNIX platform "cash on" the user base of PHP under MS windows as the PHP code developed
|
||||
under MS Windows can be used on UNIX/linux without any code change!!
|
||||
|
||||
PHP itself is written in 100% "C" langauge, and hence it runs on a very wide variety of
|
||||
platforms like BeOS, Unix, MS Windows, Apple Macintosh, IBM OS/2 and on many more operating
|
||||
platforms like BeOS, UNIX, MS Windows, Apple Macintosh, IBM OS/2 and on many more operating
|
||||
systems.
|
||||
|
||||
<it><bf>PHP is very fast and is much faster than Java. For web development, forget
|
||||
|
|
@ -173,7 +200,20 @@ object oriented scripting language</bf></it>
|
|||
<item> PHP main site <url url="http://www.php.net">
|
||||
<item> PHP resources <url url="http://ils.unc.edu/web-db/php/links.html">
|
||||
<item> PHP Code Exchange - <url url="http://px.sklar.com">
|
||||
<item> Vex Net <url url="http://www.vex.net/php">
|
||||
</itemize>
|
||||
|
||||
Mirror sites are in many countries like www.COUNTRYCODE.php.net, where
|
||||
COUNTRYCODE is like us, fe, sk etc.
|
||||
<itemize>
|
||||
<item> <url url="http://www.fe.de.php.net">
|
||||
<item> <url url="http://www.sk.php.net">
|
||||
<item> <url url="http://php.iquest.net/">
|
||||
<item> Questions e-mail to :
|
||||
<htmlurl url="mailto:rasmus@lerdorf.on.ca"
|
||||
name="rasmus@lerdorf.on.ca">
|
||||
</itemize>
|
||||
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
|
|
@ -190,9 +230,9 @@ PHP runs lot faster than ASP on MS Windows and has more features and functionali
|
|||
than Microsoft ASP.
|
||||
PHP is much more robust, reliable and powerful than ASP.
|
||||
And the user base of PHP is extremely large because PHP runs on MS Windows,
|
||||
Linux, Mac OS and all unixes.
|
||||
Linux, Mac OS and all UNIX'es.
|
||||
Greatest advantage of
|
||||
PHP is that you can develop on MS Windows and deploy on Linux or Unix and vice versa!!
|
||||
PHP is that you can develop on MS Windows and deploy on Linux or UNIX and vice versa!!
|
||||
|
||||
There are more PHP users under MS Windows98/NT/2000 than on any other operating system!!
|
||||
Because there is so much demand for PHP on MS Windows 98/NT/2000, a ready to
|
||||
|
|
@ -246,9 +286,13 @@ and at console mode startup the
|
|||
<url name="PostgreSQL" url="http://www.geocities.com/alavoor/HOWTO/pgsql/PostgreSQL-HOWTO.html">
|
||||
server.
|
||||
<url name="PostgreSQL" url="http://www.geocities.com/alavoor/HOWTO/pgsql/PostgreSQL-HOWTO.html">
|
||||
is <bf>3 times </bf>
|
||||
is about <bf>3 times </bf>
|
||||
faster than Oracle or MS SQL server.
|
||||
|
||||
The PostgreSQL support code for PHP was written by Adam Sussman
|
||||
<htmlurl url="mailto: asussman@vidya.com"
|
||||
name="asussman@vidya.com">
|
||||
|
||||
You can also order ready-to-go cheap Linux boxes from -
|
||||
<itemize>
|
||||
<item> Egghead <url name="Egghead" url="http://www.egghead.com">,
|
||||
|
|
@ -288,7 +332,7 @@ howto at
|
|||
*******************************************
|
||||
|
||||
-->
|
||||
<sect1> PHP Installation on unixes and others<label id = "PHP Installation">
|
||||
<sect1> PHP Installation on UNIX'es and others<label id = "PHP Installation">
|
||||
<p>
|
||||
See the installation guide and instructions at
|
||||
PHP main site <url url="http://www.php.net"> or INSTALL file
|
||||
|
|
@ -348,6 +392,222 @@ See also
|
|||
|
||||
|
||||
|
||||
<chapt> PHP Features <label id = "phpfeatures">
|
||||
-->
|
||||
<sect> Major Features of PHP <label id = "phpfeatures">
|
||||
<p>
|
||||
<itemize>
|
||||
<item>Standard CGI, FastCGI and Apache module support -
|
||||
As a standard CGI program, PHP can be installed on any
|
||||
UNIX machine running any UNIX web server. With support for
|
||||
the new FastCGI standard, PHP can take advantage of the
|
||||
speed improvements gained through this mechanism. As an
|
||||
Apache module, PHP becomes an extremely powerful and
|
||||
<bf>lightning fast</bf> alternative to CGI programmimg.
|
||||
|
||||
<item> Access Logging -
|
||||
With the access logging capabilities of PHP, users can
|
||||
maintain their own hit counting and logging. It does not use
|
||||
the system's central access log files in any way, and it
|
||||
provides real-time access monitoring. The Log Viewer Script
|
||||
provides a quick summary of the accesses to a set of pages
|
||||
owned by an individual user. In addition to that, the package
|
||||
can be configured to generate a footer on every page which
|
||||
shows access information. See the bottom of this page for an
|
||||
example of this.
|
||||
|
||||
<item> Access Control -
|
||||
A built-in web-based configuration screen handles access
|
||||
control configuration. It is possible to create rules for all
|
||||
or some web pages owned by a certain person which place
|
||||
various restrictions on who can view these pages and how they
|
||||
will be viewed. Pages can be password protected, completely
|
||||
restricted, logging disabled and more based on the client's
|
||||
domain, browser, e-mail address or even the referring
|
||||
document.
|
||||
|
||||
<item> PostgresSQL Support -
|
||||
Postgres is an advanced free RDBMS. PHP supports embedding
|
||||
PostgreSQL "SQL queries" directly in .html files.
|
||||
|
||||
<item> RFC-1867 File Upload Support -
|
||||
File Upload is a new feature in Netscape 2.0. It lets users
|
||||
upload files to a web server. PHP provides the actual Mime
|
||||
decoding to make this work and also provides the additional
|
||||
framework to do something useful with the uploaded file once
|
||||
it has been received.
|
||||
|
||||
<item> HTTP-based authentication control -
|
||||
PHP can be used to create customized HTTP-based
|
||||
authentication mechanisms for the Apache web server.
|
||||
|
||||
<item> Variables, Arrays, Associative Arrays -
|
||||
PHP supports typed variables, arrays and even Perl-like
|
||||
associative arrays. These can all be passed from one web page
|
||||
to another using either GET or POST method forms.
|
||||
|
||||
<item> Conditionals, While Loops -
|
||||
PHP supports a full-featured C-like scripting language.
|
||||
You can have if/then/elseif/else/endif conditions as well as
|
||||
while loops and switch/case statements to guide the logical
|
||||
flow of how the html page should be displayed.
|
||||
|
||||
<item> Extended Regular Expressions -
|
||||
Regular expressions are heavily used for pattern matching,
|
||||
pattern substitutions and general string manipulation. PHP
|
||||
supports all common regular expression operations.
|
||||
|
||||
<item> Raw HTTP Header Control -
|
||||
The ability to have web pages send customized raw HTTP
|
||||
headers based on some condition is essential for high-level
|
||||
web site design. A frequent use is to send a Location: URL
|
||||
header to redirect the calling client to some other URL. It
|
||||
can also be used to turn off cacheing or manipulate the last
|
||||
update header of pages.
|
||||
|
||||
<item> On-the-fly GIF image creation -
|
||||
PHP has support for Thomas Boutell's GD image library
|
||||
which makes it possible to generate GIF images on the fly.
|
||||
|
||||
<item> ISP "Safe Mode" support -
|
||||
PHP supports an unique "Safe Mode" which makes it safe to
|
||||
have multiple users run PHP scripts on the same server.
|
||||
|
||||
<item> Many more new features are being added in newer releases of PHP.
|
||||
Visit the main web site at <url url="http://www.php.net">
|
||||
|
||||
<item> It's Free! -
|
||||
One final essential feature. The package is completely free.
|
||||
It is licensed under the GNU/GPL which allows you to use the
|
||||
software for any purpose, commercial or otherwise.
|
||||
</itemize>
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
|
||||
<chapt>Brief History of PHP
|
||||
-->
|
||||
<sect>Brief History of PHP
|
||||
<p>
|
||||
PHP began life as a simple little cgi wrapper written in Perl.
|
||||
The name of this first package was Personal Home Page Tools, which
|
||||
later became Personal Home Page Construction Kit.
|
||||
|
||||
Old name is Professional Home Pages (PHP) and new name is PHP Hypertext Pre-Processor.
|
||||
|
||||
A tool was written to easily embed SQL queries into web pages. It
|
||||
was basically another CGI wrapper that parsed SQL queries and
|
||||
made it easy to create forms and tables
|
||||
based on these queries. This tool was named FI (Form Interpreter).
|
||||
|
||||
PHP/FI version 2.0 is a complete rewrite of these two packages combined
|
||||
into a single program.
|
||||
It evolved to a simple programming language embedded inside HTML files.
|
||||
PHP eliminates the need for numerous small Perl cgi programs
|
||||
by allowing you to place simple scripts directly in your HTML files. This
|
||||
speeds up the overall performance of your web pages since the overhead of
|
||||
forking Perl several times has been eliminated.
|
||||
It also makes it easier to manage large web sites by placing
|
||||
all components of a web page in a single html file.
|
||||
By including support for various databases, it also makes it
|
||||
trivial to develop database enabled web pages. Many people find the
|
||||
embedded nature much easier to deal with than trying to create separate
|
||||
HTML and CGI files.
|
||||
|
||||
Now PHP/FI is renamed as PHP.
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
|
||||
<chapt>A Simple Example
|
||||
-->
|
||||
<sect>A Simple Example
|
||||
<p>
|
||||
Suppose you have a form:
|
||||
<tscreen><verb>
|
||||
<FORM ACTION="/cgi-bin/php.cgi/~userid/display.html" METHOD=POST>
|
||||
<INPUT TYPE="text" name="name">
|
||||
<INPUT TYPE="text" name="age">
|
||||
<INPUT TYPE="submit">
|
||||
<FORM>
|
||||
</verb></tscreen>
|
||||
Your display.html file could then contain something like:
|
||||
<tscreen><verb>
|
||||
< ?echo "Hi &dollar name, you are &dollar age years old!<p>" >
|
||||
</verb></tscreen>
|
||||
It's that simple! PHP automatically creates a variable for each form
|
||||
input field in your form. You can then use these variables in the ACTION
|
||||
URL file.
|
||||
|
||||
The next step once you have figured out how to use variables is to start
|
||||
playing with some logical flow tags in your pages. For example, if you
|
||||
wanted to display different messages based on something the user inputs,
|
||||
you would use if/else logic. In our above example, we can display different
|
||||
things based on the age the user entered by changing our display.html to:
|
||||
<tscreen><verb>
|
||||
<?
|
||||
if($age>50);
|
||||
echo "Hi $name, you are ancient!<p>";
|
||||
elseif($age>30);
|
||||
echo "Hi $name, you are very old!<p>";
|
||||
else;
|
||||
echo "Hi $name.";
|
||||
endif;
|
||||
>
|
||||
</verb></tscreen>
|
||||
PHP provides a very powerful scripting language which will do much more
|
||||
than what the above simple example demonstrates. See the section on the
|
||||
PHP Script Language for more information.
|
||||
|
||||
You can also use PHP to configure who is allowed to access your pages.
|
||||
This is done using a built-in configuration screen. With this you could for
|
||||
example specify that only people from certain domains would be allowed to
|
||||
see your pages, or you could create a rule which would password protect
|
||||
certain pages. See the Access Control section for more details.
|
||||
|
||||
PHP is also capable of receiving file uploads from any RFC-1867
|
||||
compliant web browser. This feature lets people upload both text and binary
|
||||
files. With PHP's access control and logical functions, you have full
|
||||
control over who is allowed to upload and what is to be done with the file
|
||||
once it has been uploaded. See the File Upload section for more details.
|
||||
|
||||
PHP has support for the PostgreSQL database package. It supports
|
||||
embedded SQL queries in your .HTML files.
|
||||
|
||||
PHP also has support for the mysql database package. It supports
|
||||
embedded SQL queries in your .HTML files.
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
|
||||
|
||||
|
||||
<chapt> PHP Libraries <label id = "phplibs">
|
||||
-->
|
||||
<sect> SOAPX4 and PhpXMLP <label id = "soap">
|
||||
<p>
|
||||
SOAP is an XML-based protocol for messaging and RPC-style communication between two processes.
|
||||
The World Wide Web Consortium's XML Protocol (XP) Working Group is working on a SOAP
|
||||
standard, which will be called XP.
|
||||
|
||||
The SOAPX4 (Simple Object Access Protocol) implementation for PHP is at
|
||||
<url url="http://dietrich.ganx4.com/soapx4">.
|
||||
|
||||
Alternate SOAP implementation is at <url url="http://sourceforge.net/projects/phpxmlp">.
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
|
||||
|
||||
|
||||
<chapt> PHP Libraries <label id = "phplibs">
|
||||
-->
|
||||
<sect> PHP Libraries <label id = "phplibs">
|
||||
|
|
@ -464,6 +724,27 @@ for the book, "A Guide to Databases under Linux" (Syngress Media) but
|
|||
is available under the GNU Public License.
|
||||
<url url="http://sourceforge.net/projects/phpshopcart">
|
||||
</itemize>
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
|
||||
<chapt> PHPGem package
|
||||
-->
|
||||
<sect> PHPGem package
|
||||
<p>
|
||||
PHPGem is a PHP-script which accelerates the creation of PHP-scripts
|
||||
for working with tables. It works with different SQL-servers such as
|
||||
PostgreSQL, MySQL, mSQL, ODBC, and Adabas. You input a description of
|
||||
and parameters for your tables' fields (field name, on/off searching
|
||||
in the field, etc.), and PHPGem outputs another PHP-script which will
|
||||
work with the tables (view/add/edit/delete/duplicate entries and
|
||||
search). PHPGem works with multi-level nested tables. PHPGem allows
|
||||
you to specify a level of access for each table and for each field for
|
||||
each user. PHPGem also support images.
|
||||
|
||||
PHPGem is at <url url="http://sptl.org/phpgem">
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
|
|
@ -615,7 +896,7 @@ without needing to reprogram other parts
|
|||
<item> Group IT Engine
|
||||
<url url="http://groupit.org">
|
||||
is a turnkey group collaboration and content management engine. It
|
||||
presently runs on Unix machines using PHP and Apache. Using GroupIT you
|
||||
presently runs on UNIX machines using PHP and Apache. Using GroupIT you
|
||||
can "Categorize your content", "Organize your contents into sections",
|
||||
"Control access to your content" and many more
|
||||
<url name="additional features" url="http://groupit.org/channel/features">.
|
||||
|
|
@ -797,8 +1078,8 @@ PHP runs lot faster than ASP on MS Windows and has more features and functionali
|
|||
than Microsoft ASP.
|
||||
PHP is much more robust, reliable and powerful than ASP.
|
||||
There are more PHP users under MS Windows98/NT/2000 than on any other operating system!!
|
||||
PHP initially started on Linux/unix environment but today there are more
|
||||
PHP developers on MS Windows platform as compared to unix.
|
||||
PHP initially started on Linux/UNIX environment but today there are more
|
||||
PHP developers on MS Windows platform as compared to UNIX.
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
|
|
@ -880,7 +1161,7 @@ with PHP code explorer <url url="http://www.tashcom.com/codex"> (rating 4.5 star
|
|||
<p>
|
||||
PHP IDE/editor for bot MS Windows and Linux platforms are :
|
||||
<itemize>
|
||||
<item> PHP editor (for both windows and linux/unixes) <url url="http://www.coffeecup.com/select/editor.html"> (rating 5 stars).
|
||||
<item> PHP editor (for both windows and linux/UNIX) <url url="http://www.coffeecup.com/select/editor.html"> (rating 5 stars).
|
||||
<item> HTML/PHP editors Amaya <url url="http://www.w3.org/Amaya" >
|
||||
<item> Folding text editor (Win and linux) <url url="http://fte.sourceforge.net">
|
||||
<item> PHP Editor (Win and linux) <url url="http://www.scintilla.org">
|
||||
|
|
@ -918,10 +1199,25 @@ and see also <ref id="ptags" name="ptags of PHP">
|
|||
-->
|
||||
<sect1>PHP Utilities <label id = "phputil">
|
||||
<p>
|
||||
Zend is a server-side caching software speeds up Web site performance, maximizes hardware
|
||||
resources, and improves the online experience of customers, providing a good return
|
||||
on investment. Zend accelerator caches PHP scripts, helping to reduce processing time
|
||||
and Web server load while enabling administrators to monitor site performance in real time.
|
||||
Cost is $980 and supports Linux, Solaris and FreeBSD.
|
||||
Zends provides:
|
||||
<itemize>
|
||||
<item> Enables IT to serve more Web site visitors with existing hardware
|
||||
<item> Speeds up Web site response time
|
||||
<item> Provides real-time performance monitoring
|
||||
</itemize>
|
||||
|
||||
<itemize>
|
||||
<item> Zend Optimizers <url url="http://www.zend.com">
|
||||
<item> Zend Compilers <url url="http://www.zend.com" >
|
||||
<p>
|
||||
<item> APC "Alternative PHP Cache" is an open-source alternative to Zend's commercial
|
||||
accelerator which is at <url url="http://apc.communityconnect.com">.
|
||||
<p>
|
||||
<item> Lots of info on PHP on MS Windows platform <url url="http://php.weblogs.com">
|
||||
<p>
|
||||
<item> PHP GroupWare Apps <url url="http://www.phpgroupware.org">
|
||||
|
|
@ -953,7 +1249,7 @@ Tags are extremely valuable and are used for navigation of source code inside th
|
|||
editors like vi, emacs, CRiSP, NEdit etc... If you had
|
||||
programmed a lot in C, C++ or Java you
|
||||
might have used the <bf>ctags</bf> program to create tags.
|
||||
To see the online manual page, type 'man ctags' at linux/unix bash prompt.
|
||||
To see the online manual page, type 'man ctags' at linux/UNIX bash prompt.
|
||||
The latest version of <bf>ctags</bf> supports PHP language and is
|
||||
available from <url url="http://ctags.sourceforge.net">.
|
||||
|
||||
|
|
@ -1148,6 +1444,24 @@ PHP Debugger is available at <url url="http://www.phpdebug.com">
|
|||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
-->
|
||||
<sect1> PHP Debuggers
|
||||
<p>
|
||||
List of PHP debuggers :
|
||||
<itemize>
|
||||
<item> <url url="http://download.php.net/manual/en/debugger.php">.
|
||||
<item> <url url="http://dd.cron.ru/dbg">
|
||||
<item> Zend-IDE has PHP debugger <url url="http://www.zend.com/store/products/zend-ide.php">
|
||||
<item> Soysal editor has PHP debugger <url url="http://www.soysal.com/PHPEd">
|
||||
<item> PHP symbolic debugger <url url="http://members.ozemail.com.au/~djf01/body.html">
|
||||
and at <url url="http://freshmeat.net/projects/body-phpdebugger">
|
||||
<item>
|
||||
</itemize>
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
*******************************************
|
||||
|
||||
-->
|
||||
<sect1> Debug with FILE and LINE
|
||||
<p>
|
||||
|
|
@ -1263,7 +1577,7 @@ or use the 'yank to buffer' feature of Vi editor and paste.
|
|||
|
||||
When you are done development and testing and when you are ready to
|
||||
deploy on the production server, filter out the debug2_ calls from
|
||||
your source code. At unix prompt -
|
||||
your source code. At UNIX prompt -
|
||||
<code>
|
||||
bash$ mkdir production
|
||||
bash$ grep -v debug2_ filea.php3 > production/filea.php3
|
||||
|
|
@ -1290,16 +1604,27 @@ And now copy the files from production to the deployment area.
|
|||
<sect> General purpose programming with PHP <label id = "genphp">
|
||||
<p>
|
||||
PHP is very powerful and is designed such that it can replace awk, sed,
|
||||
unix shell, perl, "C", C++ and Java.
|
||||
UNIX shell, perl, "C", C++ and Java.
|
||||
|
||||
|
||||
The object oriented features of PHP is developing very rapidly and in near future
|
||||
will surpass the object oriented features of Java language. All the object oriented
|
||||
features are implemented in PHP via <bf>class</bf> keyword just like in Java.
|
||||
|
||||
If you build the CGI version of PHP, you can use it from the command
|
||||
line simply typing: <tt>php filename</tt> where filename is the file you want to
|
||||
parse. You can also create standalone PHP scripts by making the first
|
||||
line of your script look something like:
|
||||
<tscreen><verb>
|
||||
#!/usr/local/bin/php -q
|
||||
</verb></tscreen>
|
||||
The "-q" suppresses the printing of the HTTP headers. You can leave off
|
||||
this option if you like.
|
||||
|
||||
If you want to use PHP as a stand-alone program, just like a shell script,
|
||||
"C" or perl program, then use this technique:
|
||||
<code>
|
||||
bash$ php filename.php
|
||||
bash$ php -q filename.php
|
||||
bash$ php -h
|
||||
bash$ php -?
|
||||
bash$ /usr/bin/php -?
|
||||
|
|
@ -1312,7 +1637,7 @@ bash commmandline instead of from the web-browser.
|
|||
On Microsoft Windows platform you will bringup a MSDOS prompt from Start->Run->cmd
|
||||
and put C:\Program Files\php\bin in your path environment and
|
||||
<code>
|
||||
C:\> php filename.php
|
||||
C:\> php -q filename.php
|
||||
C:\> php -h
|
||||
C:\> php -?
|
||||
or
|
||||
|
|
@ -1333,7 +1658,7 @@ GUI applications. And developing applications with PHP is extremely fast
|
|||
as it is a scripting language and it's runtime performance is also excellent
|
||||
as compared with other scripting languages like Perl, Visual Basic and Python.
|
||||
|
||||
PHP can also be used for developing standalone GUI applications for Linux/Unixes.
|
||||
PHP can also be used for developing standalone GUI applications for Linux/UNIX'es.
|
||||
<!--
|
||||
*******************************************
|
||||
************ End of Section ***************
|
||||
|
|
@ -1431,7 +1756,7 @@ not know that the HTML page is generated by PHP !!
|
|||
<item> PHP has C++, Perl, Javascript like syntax features and has programs like
|
||||
'ptags/ctags' to navigate the source code
|
||||
<item> PHP has Zend optimizer which speeds up the performance
|
||||
<item> PHP runs on all unixes, linux, Windows 95/NT/2000 and is more
|
||||
<item> PHP runs on all UNIX'es, linux, Windows 95/NT/2000 and is more
|
||||
powerful than ASP, JSP and others.
|
||||
<item> PHP has a very large user base and developer base.
|
||||
</enum>
|
||||
|
|
@ -1473,6 +1798,7 @@ and <url name="CGI-Resources" url="http://cgi-resources.com">
|
|||
<item> Dev Shed <url url="http://www.devshed.com/Server_Side/PHP/Introduction">
|
||||
<item> PHP TidBits <url url="http://www.htmlwizard.net/resources/tutorials">
|
||||
<item> PHP Builder <url url="http://www.phpbuilder.com/getit">
|
||||
<item> PHP tutorials at <url url="http://www.cgi-network.net">
|
||||
</itemize>
|
||||
|
||||
In this tutorial we assume that your server has support for PHP activated
|
||||
|
|
@ -1848,7 +2174,7 @@ Mirror sites are at -
|
|||
<p>
|
||||
This document is published in 14 different formats namely - DVI, Postscript,
|
||||
Latex, Adobe Acrobat PDF,
|
||||
LyX, GNU-info, HTML, RTF(Rich Text Format), Plain-text, Unix man pages, single
|
||||
LyX, GNU-info, HTML, RTF(Rich Text Format), Plain-text, UNIX man pages, single
|
||||
HTML file, SGML (Linuxdoc format), SGML (Docbook format), MS WinHelp format.
|
||||
|
||||
This howto document is located at -
|
||||
|
|
|
|||
Loading…
Reference in New Issue