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@ -45,7 +45,7 @@ PHP HOW-TO
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" name="
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alavoor[AT]yahoo.com
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">
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<date>v27.3, 03 Aug 2002
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<date>v27.4, 24 Aug 2002
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<abstract>
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This document tells you howto develop PHP programs and also to migrate all the
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Windows 95 GUI applications to powerful PHP + HTML + DHTML + XML + Java applets + Javascript.
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@ -122,11 +122,12 @@ Tcl, VB script, ASP are older and inferior technologies. Even Java/JSP is inferi
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<bf>Why PHP ?</bf>
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PHP is the best because of the following reasons:
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<itemize>
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<item> PERL is "YUCKY" (distasteful) because it is hard to read and
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maintain the programs. Not object oriented.
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Perl does not scale well in a large project with multiple active developers.
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It is commonly said that PERL is better suited for smaller, one-time projects.
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Forget PERL and goto PHP. PERL programmers like PHP!
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<item> PERL is the "ancestor" of PHP and PERL is used for a very long
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time (more than 25 years old?).
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PHP has an advantage over PERL - PHP supports client-side code and is easier to
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compile into a executable. User base of PERL is very large.
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PHP tries to imitate PERL and complement the PERL technology.
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PERL programmers like PHP!
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PHP is actually a "modern PERL", but with a different name called "PHP".
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<item> Java is object-oriented but is very SLOW. Java programs run very slow.
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Also Java is immensely complex
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@ -460,7 +461,7 @@ PHP can be used to create customized HTTP-based
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authentication mechanisms for the Apache web server.
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<item> Variables, Arrays, Associative Arrays -
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PHP supports typed variables, arrays and even Perl-like
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PHP supports typed variables, arrays and even PERL-like
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associative arrays. These can all be passed from one web page
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to another using either GET or POST method forms.
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@ -591,9 +592,9 @@ Programming consultant Reuven Lerner has made some comparisons
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among the languages. His view of PHP is summarized as follows:
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"The language is easy to learn. Graphic artists and Web designers might claim that they are not programmers, but the fact is that they're doing increasingly
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large projects in JavaScript, VBScript, and other simple programming languages. PHP is much more regular and well-defined than Perl, and is much easier for
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large projects in JavaScript, VBScript, and other simple programming languages. PHP is much more regular and well-defined than PERL, and is much easier for
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new programmers to grasp than Java. Indeed, PHP seems like a server-side version of what JavaScript could have been, but isn't. Someone with little or no
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programming experience can learn PHP and work with it after a very short period of time. This is probably true for VBScript, but certainly not for Perl or
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programming experience can learn PHP and work with it after a very short period of time. This is probably true for VBScript, but certainly not for PERL or
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Java....PHP is a truly remarkable and powerful system.
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I can see why it has become a popular system for producing Web sites.... I think that it will be a very strong competitor against Java and JSPs, and will rise
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significantly in my recommendations for clients and internal use."
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@ -604,7 +605,7 @@ significantly in my recommendations for clients and internal use."
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<p>
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JSP enjoys the backing of Sun; hence its constant media attention. It is interesting to note that despite the lack of any publicity campaign, PHP's popularity is
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growing at a monthly rate of 8-11%, a percentage far greater than the Internet's 4% monthly growth -- as the demand for server-based applications has
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risen. More than 6.5 million sites use PHP (Netcraft May 2001 survey). PHP is used on 39% of Apache servers; Perl trails fourth, with 11% of the market.
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risen. More than 6.5 million sites use PHP (Netcraft May 2001 survey). PHP is used on 39% of Apache servers; PERL trails fourth, with 11% of the market.
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Apache maintains 59% of the Web server market; Microsoft IIS is second, with 28% of market share (E-Soft Inc./SecuritySpace's May 2001 report).
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Prominent corporations using PHP include Unilever, Philips, NTT, Cisco, Japan Airlines, Air Canada, Lufthansa, GE Marketplace, Wallstreet:Online Germany;
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@ -622,7 +623,7 @@ AuctionWatch, VillageVoice, Dialpad and BMC.
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<sect>Brief History of PHP
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<p>
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PHP began life as a simple little cgi wrapper written in Perl.
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PHP began life as a simple little cgi wrapper written in PERL.
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The name of this first package was Personal Home Page Tools, which
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later became Personal Home Page Construction Kit.
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@ -636,10 +637,10 @@ based on these queries. This tool was named FI (Form Interpreter).
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PHP/FI version 2.0 is a complete rewrite of these two packages combined
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into a single program.
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It evolved to a simple programming language embedded inside HTML files.
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PHP eliminates the need for numerous small Perl cgi programs
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PHP eliminates the need for numerous small PERL cgi programs
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by allowing you to place simple scripts directly in your HTML files. This
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speeds up the overall performance of your web pages since the overhead of
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forking Perl several times has been eliminated.
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forking PERL several times has been eliminated.
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It also makes it easier to manage large web sites by placing
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all components of a web page in a single html file.
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By including support for various databases, it also makes it
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@ -773,7 +774,7 @@ ready to use PHP class libraries.
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<item> <bf>PHP classes</bf> are at <url url="http://phpclasses.upperdesign.com">.
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<p>
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<item> <bf>PEAR (PHP Extension and Application Repository)</bf> is a code repository
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for PHP extensions and PHP library code similar to Perl's CPAN and is at
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for PHP extensions and PHP library code similar to PERL's CPAN and is at
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<url url="http://pear.php.net"> and
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<url name="mirror" url="http://lxr.php.net/source/php4/pear">
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linux <url name="php-pear-rpms" url="http://rpmfind.net/linux/rpm2html/search.php?query=pear">
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@ -986,7 +987,7 @@ of data security. And it's free.
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<p>
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<item> PEAR (PHP Extension and Application Repository) is a code repository
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for PHP extensions and PHP library code similar to Perl's CPAN and is at
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for PHP extensions and PHP library code similar to PERL's CPAN and is at
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<url url="http://lxr.php.net/source/php4/pear">
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and <url name="pear-tutorials" url="http://php.weblogs.com/php_pear_tutorials">.
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@ -1490,10 +1491,10 @@ It is at <url url="http://phpdocu.sourceforge.net">.
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<p>
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<item> The <url name="Doxygen documentation" url="http://www.stack.nl/~dimitri/doxygen"> system
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can be used along with this
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<url name="Doxygen PHP Perl" url="http://www.stack.nl/~dimitri/doxygen/download.html#latestman">
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script. Download Doxygen and the Perl script from download page.
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<url name="Doxygen PHP PERL" url="http://www.stack.nl/~dimitri/doxygen/download.html#latestman">
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script. Download Doxygen and the PERL script from download page.
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<p>
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<item> PHPXref is a small Perl script to make working with the source code
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<item> PHPXref is a small PERL script to make working with the source code
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of a large PHP site somewhat easier.
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Cross references functions, variables and database tables defined
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and used across your various PHP files
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@ -1662,7 +1663,7 @@ And now copy the files from production to the deployment area.
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<sect> General purpose programming with PHP <label id = "genphp">
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<p>
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PHP is very powerful and is designed such that it can replace awk, sed,
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UNIX shell, Perl, Python, "C", C++ and Java.
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UNIX shell, PERL, Python, "C", C++ and Java.
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The object oriented features of PHP is developing very rapidly and in near future
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@ -1680,7 +1681,7 @@ The "-q" suppresses the printing of the HTTP headers. You can leave off
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this option if you like.
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If you want to use PHP as a stand-alone program, just like a shell script,
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"C" or perl program, then use this technique:
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"C" or PERL program, then use this technique:
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<code>
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bash$ php -q filename.php
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bash$ php -h
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@ -1710,7 +1711,7 @@ language, you can use it develop standalone MS Windows GUI applications.
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PHP can be very easily combined with MS Windows C++ GUI classes to create
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GUI applications. And developing applications with PHP is extremely fast
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as it is a scripting language and it's runtime performance is also excellent
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as compared with other scripting languages like Perl, Visual Basic and Python.
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as compared with other scripting languages like PERL, Visual Basic and Python.
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PHP can also be used for developing standalone GUI applications for Linux/UNIX'es.
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@ -1822,7 +1823,7 @@ PHP will give you the freedom to select any server platform. The browser does
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not know that the HTML page is generated by PHP !!
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<item> PHP has excellent database conectivity to all SQL database servers.
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<item> PHP has partial support for Object oriented features
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<item> PHP has C++, Perl, Javascript like syntax features and has programs like
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<item> PHP has C++, PERL, Javascript like syntax features and has programs like
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'ptags/ctags' to navigate the source code
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<item> PHP has Zend optimizer which speeds up the performance
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<item> PHP runs on all UNIX'es, linux, Windows 95/NT/2000 and is more
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@ -2430,13 +2431,13 @@ see the documentation on building Ghostscript for details.
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This document is written in linuxdoc SGML format. The Docbook SGML format
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supercedes the linuxdoc format and has lot more features than linuxdoc.
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The linuxdoc is very simple and is easy to use. To convert linuxdoc SGML
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file to Docbook SGML use the program <bf>ld2db.sh</bf> and some perl scripts.
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file to Docbook SGML use the program <bf>ld2db.sh</bf> and some PERL scripts.
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The ld2db output is not 100% clean and you need to use the <bf>clean_ld2db.pl</bf>
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perl script. You may need to manually correct few lines in the document.
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PERL script. You may need to manually correct few lines in the document.
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<itemize>
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<item> Download ld2db program from <url url="http://www.dcs.gla.ac.uk/~rrt/docbook.html">
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or from <url name="Milkyway Galaxy site" url="http://www.milkywaygalaxy.freeservers.com">
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<item> Download the cleanup_ld2db.pl perl script from
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<item> Download the cleanup_ld2db.pl PERL script from
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from <url name="Milkyway Galaxy site" url="http://www.milkywaygalaxy.freeservers.com">
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</itemize>
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The ld2db.sh is not 100% clean, you will get lots of errors when you run
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@ -2447,7 +2448,7 @@ The ld2db.sh is not 100% clean, you will get lots of errors when you run
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bash$ docbook2html db.sgml
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</code>
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And you may have to manually edit some of the minor errors after
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running the perl script. For e.g. you may need to put closing tag <
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running the PERL script. For e.g. you may need to put closing tag <
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/Para> for each <
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Listitem>
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@ -2951,5 +2952,64 @@ function CS_SendArray($array, $arrayStr = ""){
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}
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?>
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</code>
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<sect> Appendix D - PERL versus PHP debate<label id="perldebate">
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<p>
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PERL (Practical Extraction and Reporting Language) is kind of ancestor
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of PHP. PERL is immensely powerful and is in use for a very long time,
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just like "C" language. PERL can do everything that "C" language does.
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You are better off programming in PERL than in "C" language!!
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Most of the "C" programmers prefer to program in PERL if speed is
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not that important (C programs is little faster than PERL).
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PERL5 is fully OOP operational. Just because PERL can also do
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everything without OOP techniques does not mean it's not OOP.
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Comparing PERL to PHP, in terms of readability and
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scalability, they are nearly equal although PHP has a slight
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advantage for those who insist on using only client side code.
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PERL is certainly easier to read than C due to it being a very high
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level language. As you know, the biggest obstacle to multiple developer
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maintenance is compilers from which PERL does not suffer.
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PHP and PERL are equal in these ways:
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<enum>
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<item> High level code. English-like syntax is easy to read and logical
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<item> Execution speed. As raw interpreted source code, both are very fast
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(compared to VB and the like.)
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<item> Ease and speed of development. As scripts, both can be developed
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quickly bypassing the nasty compiler and with built-in intelligent
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debuggers.
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<item> Run anywhere. A dream these share which all other languages fail.
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<item> Superior text processing to all other languages.
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<item> Open source.
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<item> Both are very well supported by whole Internet community
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<item> Both are free.
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</enum>
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Where PHP has an advantage over PERL:
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<enum>
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<item> Client-side code (for those who insist on such things.)
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<item> Easier to compile into EXE.
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</enum>
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Where PERL might have an advantage over PHP.
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<enum>
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<item> PERL is already installed on every web server in the world
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automatically
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during setup.
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<item> PERL is more backward and forward compatible.
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<item> PERL in all it's versions is VERY stable.
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<item> PERL hooks into all existing dbase engines very easily. The
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necessary
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modules come with
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every PERL distribution. All that is required is up-to-date drivers
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which
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are easy to obtain. PERL and MySQL are made for each other.
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</enum>
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</article>
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@ -46,7 +46,7 @@ Vi Improved with syntax color highlighting
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"name="
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alavoor[AT]yahoo.com
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">
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<date>v18.2, 03 Aug 2002
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<date>v18.3, 24 Aug 2002
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<abstract>
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This document is a guide to quickly setting up the Vim color editor on Linux or Unix systems. The information here will improve the productivity of programmers because the
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Vim editor supports syntax color highlighting and bold fonts, improving the
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@ -875,6 +875,8 @@ OR plain vanilla mode
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</CODE>
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It is very strongly recommended that you always use gvim instead of vim, since GUI mode
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with colors will definitely improve your productivity.
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The vim also gives colors but cannot set the background colors and gvim can set the
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background and foreground colors.
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GUI mode gvim provides the following -
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<itemize>
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@ -945,6 +947,26 @@ usleep((unsigned long) 10000)
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</itemize>
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For transferring files from Unix to MS Windows use the ftp clients like
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<itemize>
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<item> Commercial :
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<enum>
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<item> The ftp voyager <url url="http://cws.internet.com/ftp-ftpvoyag.html">
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<item> Cute ftp <url url="http://cws.internet.com/ftp-cuteftp.html">
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</enum>
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<item> Free ratings:
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<enum>
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<item> WSFTP : <url url="http://www.csra.net/junodj/ws_ftp32.htm">
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<item> LeechFTP <url url="http://cws.internet.com/ftp-leechftp.html">
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<url url="http://stud.fh-heilbronn.de/~jdebis/leechftp/">
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<item> FTP Control
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<url url="http://cws.internet.com/ftp-ftpcontrol.html">
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<item> GetRight <url url="http://cws.internet.com/ftp-getright.html">
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</enum>
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</itemize>
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<sect> Vi companions
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