Vincent Pontier aka Elroubio – Creator Of elePHPant

 PHP mascot

THREE-TIERED WEB SITE: WAMP/LAMP

SERVER SIDE TECHNIQUES

• PHP• Java EE: Servlet, JSP• .NET• CGI / Perl (Very old)• Ruby• …

HISTORYPHP (PHP: Hypertext Preprocessor) was created by Rasmus Lerdorf in 1994. It was initially developed for HTTP usage logging and server-side form generation in Unix.

PHP 2 (1995) transformed the language into a Server-side embedded scripting language. Added database support, file uploads, variables, arrays, recursive functions, conditionals, iteration, regular expressions, etc.

PHP 3 (1998) added support for ODBC data sources, multiple platform support, email protocols (SNMP,IMAP), and new parser written by Zeev Suraski and Andi Gutmans .

PHP 4 (2000) became an independent component of the web server for added efficiency. The parser was renamed the Zend Engine. Many security features were added.

PHP 5 (2004) adds Zend Engine II with object oriented programming, robust XML support using the libxml2 library, SOAP extension for interoperability with Web Services, SQLite has been bundled with PHP

PHP 6 and Unicode(2005) lacking native Unicode support at the core language level

PHP 7(2015) (PHP next generation), which aims at optimizing PHP performance by refactoring the Zend Engine while retaining near-complete language compatibility.

WHAT IS PHP?

• PHP is a scripting language that was originally designed for web development to produce dynamic webpages.

• For this purpose, PHP code is embedded into HTML

• PHP originally stood for ”PERSONAL HOME PAGE” - now -  Hypertext Preprocessor

• Installed on more than 240 million websites

• Cost-effective, Scope for Customization, Faster, Preferred over others

USAGE• PHP is a general-purpose scripting language that is especially

suited to server-side web development where PHP generally runs on a web server.

• PHP code in a requested file is executed by the PHP runtime, usually to create dynamic web page content.

• PHP is also used for command-line scripting and client-side GUI applications.

• PHP can be deployed on most web servers, many operating systems and platforms, and can be used with many relational database management systems.

RESOURCES• PHP includes free and open source libraries.

• PHP is a fundamentally Internet-aware system.

• Many database servers, embedded SQL libraries such as embedded PostgreSQL, MySQL and SQLite, LDAP servers, and others.

• PHP allows developers to write extensions in C to add functionality to the PHP language.

• These can then be compiled into PHP or loaded dynamically at runtime.

PHP SYNTAX

PHP KEYWORDS

PHP TAG

PROGRAM

DEVELOPMENT ENVIRONMENT

WHITESPACE & COMMENTS

ECHO VS PRINT

SINGLE (‘) VS DOUBLE (“) QUOTES

OPERATORS

ARITHMETIC OPERATORS

COMPARISON OPERATORS

LOGICAL OPERATORS

COMBINATION OPERATORS

OPERATOR PRECEDENCE

CONTROLLING THE FLOW

REPEATING CODE

ARRAYS

INDEXED ARRAYS

ASSOCIATIVE ARRAYS

FUNCTION

RETURN FROM FUNCTION

CODE REUSE

FUNCTION

PHP FRAMEWORKS

INFORMATION• Usual file extensions .php, .phtml .php5 .phps• Paradigm imperative, object-oriented• Appeared in : 1995[1]• Designed by : Rasmus Lerdorf• Developer :The PHP Group• Typing discipline Dynamic, weak• Major implementations Zend Engine, Roadsend PHP, Phalanger,

Quercus, Project Zero, HipHop• Influenced by C, Perl, Java, C++, Tcl[1]• Influenced PHP4Delphi• Programming language : C• OS : Cross-platform• License : PHP License• Website : http://www.php.net

THANK YOU

amitpatil@whitecode.co.in