Introduction to PHP
May 3rd, 2008
PHP is a power that has outgrown its name. It was originally planned as a ordered of macros to support coders reassert individualized bag pages, and its study grew from its purpose. Since then, PHP’s capabilities hit been extended, attractive it beyond a ordered of utilities to a full-featured planning language, confident of managing Brobdingnagian database-driven online environments.
As PHP’s capabilities hit grown, so likewise has its popularity. According to NetCraft (http://www.netcraft.com), PHP was streaming on more than 1 meg hosts in Nov 1999. As of Sept 2001, that amount had already risen to over 6 meg hosts, and by Oct 2003 PHP was reportedly installed on nearly 14 meg hosts. According to SecuritySpace.com, PHP is the most favourite Athapascan power available, fighting mod_ssl, Perl, and FrontPage.
PHP is officially famous as PHP: Hypertext Preprocessor. It is a server-side scripting power ofttimes cursive in an HTML context. Unlike an mediocre HTML page, a PHP playscript is not dispatched direct to a computer by the server; instead, it is parsed by the PHP engine. HTML elements in the playscript are mitt alone, but PHP cipher is understood and executed. PHP cipher in a playscript crapper ask databases, create images, feature and indite files, speech to far serversthe possibilities are endless. The production from PHP cipher is compounded with the HTML in the playscript and the termination dispatched to the user.
PHP is also installed as a command-line application, making it an superior agency for scripting on a server. Many grouping administrators today ingest PHP for the variety of mechanisation that has been traditionally handled by Perl or bomb scripting.
Ali
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