PHP Tutorial for Beginners

This article is about a scripting language. For other uses, see PHP 

PHP

PHP: Hypertext Preprocessor

Paradigm (s) imperative, object oriented, procedural, reflecting

Appeared in 1995, 16 years ago [1]

Designed by Rasmus Lerdorf

The PHP developers group

Stable version 5.3.8 (August 23, 2011, 45 days ago)

Example 5.4.0beta1 release (September 15, 2011, 22 days ago)

Dynamic typing discipline, poor

Larger implementations Zend Engine, the Phalange, Quercus, Project Zero, HipHop

Influenced by C, Perl, Java, C + +, Tcl [1]

Influenced RadPHP (formerly PHP4Delphi)

C language implementation

Multi-OS platform

PHP License

Custom extensions. Php,. Phtml. Php4. Php3. Php5. Phps

Php.net Website

Programming PHP 

PHP is a general-purpose server-side scripting language originally designed for web development for producing dynamic Web pages. To this end, the PHP code embedded in the HTML document and interprets the PHP web server with a processor module, which creates a document of a web page. It has evolved to include a line leadership and interface can be used in standalone graphical applications. [2], PHP can be used with most web servers and stand-alone interpreter, almost every operating system and platform free of charge. [3], a competitor of Microsoft Active Server Pages (ASP) server-side script engine [4] and similar languages, PHP is installed on over 20 million websites and 1 million web servers. [5]

PHP was originally created by Rasmus Lerdorf in 1995. The main implementation of PHP is now produced by the PHP Group and serves as a de facto standard for PHP as there is no formal specification. [6] PHP is free software distributed under the PHP license that is incompatible with the GNU General Public License (GPL) because of restrictions on the use of the term PHP. [7]

Although PHP originally stood in the "Personal Home Page", is now said to stand for "PHP: Hypertext Preprocessor", a recursive acronym

PHP Tutorial for Beginners - #2 - Basic Arrays, Variables, Echo, HTML

Usage

PHP is a scripting language for general use which is especially suited for Web development with PHP server-side generally works on a Web server. All PHP code in a requested file is executed by the PHP runtime, usually to create dynamic Web page content or dynamic images used on websites or elsewhere. [34] It can also be used for command line scripting and client-side GUI applications. PHP can be deployed on most web servers, operating systems and platforms, and can be used with many management systems, relational database (RDBMS). It's free, and PHP group provides the complete source code for users to build, customize and extend for their own use. [3]

PHP primarily acts as a filter [35], taking input from a file or a text string that contains the instructions and / or PHP and outputs another stream of data, most often the result will be HTML. PHP 4, PHP parser compiles input to produce bytecode for processing by the Zend engine, which gives better performance over its predecessor the interpreter [36].

Originally designed to create dynamic Web pages, PHP is now focused primarily on server-side scripts [37], and it is similar to other server side scripting language that allows dynamic content from a Web server to a client, Microsoft Asp.net as Sun Microsystems JavaServer Pages, [38] and mod_perl. PHP has also attracted the development of frameworks that provide many building blocks and structure design to facilitate rapid application development (RAD). Some of these include CakePHP, Symphony, CodeIgniter and Zend Framework, offering features similar to other web application frameworks.

The LAMP architecture has become popular in the Web industry as a way to deploy Web applications. PHP is commonly used as P in this group, with Linux, Apache and MySQL, while P can also refer to Python or Perl, or a combination. Packages WAMP (Windows / Apache / MySQL / PHP) and packages MAMP (Mac OS X / Apache / MySQL / PHP) is also available.

As in April 2007, more than 20 million domain names hosted on the servers of the network services and PHP installed mod_php module recorded the most popular Apache. [39] using the PHP server-side programming language for 75% of all web servers. [40], Web content management system written in PHP contains a wiki, [41] Joomla, eZ Publish, WordPress, [42] Drupal [43], and Moodle. [44] All sites created using these tools are written in PHP, including the user-facing part of Wikipedia, Facebook, [45], and Digg

PHP Tutorial for Beginners - #1 - Basic Arrays, Variables, Echo, HTML