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PHP Scripting Language

PHP Scripting Language. Introduction. “PHP” is an acronym for “PHP: Hypertext Preprocessor.” It is an interpreted, server-side scripting language. Originally designed for web development. Syntax is similar to C, Perl. Similar languages are Perl, ASP.NET, Ruby, JSP (JavaServer Pages).

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PHP Scripting Language

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  1. PHP Scripting Language

  2. Introduction • “PHP” is an acronym for “PHP: Hypertext Preprocessor.” • It is an interpreted, server-side scripting language. • Originally designed for web development. • Syntax is similar to C, Perl. • Similar languages are Perl, ASP.NET, Ruby, JSP (JavaServer Pages)

  3. PHP Features • Performance • Relatively fast for an interpreted language. • Database Connectivity • Support for MySQL, Oracle, dbm, DB2, PostgreSQL • Can connect to any database which provides an ODBC driver (Open Database Connectivity Standard) – e.g. MS Access.

  4. PHP Features • Existing Libraries • PHP was originally designed for web use – lots of functions for common web-development tasks (e.g. Sending email, XML parsing, etc.) • Portability • Supported on Windows, Mac OS X, other Unix-like systems (e.g. Linux).

  5. PHP Features • Object-Oriented Programming • Similar syntax and features as C++ and Java – inheritance, attribute visibility (private, protected), abstract classes/methods, constructors and destructors, etc. • Popularity • As a result, lots of documentation, books, and web tutorials.

  6. PHP Usage • Server-Side Scripting Language • Must have a web server and the PHP interpreter installed. • PHP interpreter processes pages before they are served to clients.

  7. Windows Installation Example • Apache HTTP Server Version 2.2 • Open-source • Windows, OS X, Unix/Unix-Like (Linux) • Documentation: http://httpd.apache.org/docs/current/ • PHP Version 5.3.9 • Latest stable version • Installation instructions: http://php.net/manual/en/install.php

  8. Windows Installation Example • Basic Steps: • Download Apache Win32 Binary from http://httpd.apache.org/download.cgi#apache22 • Install Apache • Download PHP binary installer from http://www.php.net/downloads.php • Install PHP, configured to use the Apache web server • Optionally modify Apache configuration to serve PHP files as directory indices.

  9. Resources • Apache • Website: http://httpd.apache.org/ • Documentation: http://httpd.apache.org/docs/2.2/ • PHP • Website: http://www.php.net/ • Documentation and language reference: http://www.php.net/docs.php

  10. Resources • Xampp • Combines an Apache web server, PHP, and MySQL into one simple installation service. • Very little configuration required by the user to get an initial system up and running. • http://www.apachefriends.org/en/xampp.html

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