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Lecture Introduction to web engineering - Lec 24: Introduction to PHP (Part 1)

After studying this chapter you will be able to understand: Setting the environment, overview of PHP, constants and variables in PHP, basic rules of PHP syntax, writing and executing PHP code, writing output to the browser, integrating HTML with PHP,. | Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 1 Setting the environment Overview of PHP Constants and Variables in PHP Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 2 2 Department of Computer Science, CIIT Islamabad. A web server PHP MySql http://www.wampserver.com/en/ Editor Macromedia Dreamweaver /Adobe Dreamweaver Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 3 WAMP Server Checking WAMP status: MSVCR100.dll is missing Install Microsoft Visual C++ 2010 SP1 Redistributable Package Port conflict with skype Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 4 WAMP is working properly PHP: Hypertext Preprocessor Originally called “Personal Home Page Tools” Used to create dynamic web pages Popular server-side scripting technology Open-source Anyone may view, modify and redistribute source code Platform independent Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, | Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 1 Setting the environment Overview of PHP Constants and Variables in PHP Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 2 2 Department of Computer Science, CIIT Islamabad. A web server PHP MySql http://www.wampserver.com/en/ Editor Macromedia Dreamweaver /Adobe Dreamweaver Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 3 WAMP Server Checking WAMP status: MSVCR100.dll is missing Install Microsoft Visual C++ 2010 SP1 Redistributable Package Port conflict with skype Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 4 WAMP is working properly PHP: Hypertext Preprocessor Originally called “Personal Home Page Tools” Used to create dynamic web pages Popular server-side scripting technology Open-source Anyone may view, modify and redistribute source code Platform independent Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 5 Interpreted language, scripts are parsed at run-time rather than compiled beforehand Compatible with many popular databases Popular server-side scripting technology Structurally similar to C/C++ Supports procedural and object-oriented paradigm Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 6 Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 7 Embedding PHP in HTML code HTML can also be written inside the PHP code PHP can also be written as a standalone program with no HTML at all Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 8 PHP code is denoted in the page with opening and closing tags, as follows: PHP statements end with a semicolon Comments can be added as // for one line comment /* and */ for multiple lines comment Basharat Mahmood, Department of Computer Science,CIIT,Islamabad, Pakistan. 9 Open a notepad or dreamweaver file Write