1. 1 CSC 301 Web Programming Charles Frank

2. PHP – Stands for:  Personal Home Page (originally),  PHP: Hypertext Preprocessor (now; follows GNU’s recursive naming convention). – Developed:  Created by Rasmus Lerdorf in ’94  Became later an Open Source project, developed and maintained by the PHP Group  Open Source project = you have access to the source code, and you can use, alter and redistribute it without charge – Current release: 5.6.11 2

3. PHP – What is it?  A server-side scripting language designed specifically for the Web.  PHP code:  is embedded within HTML pages; extension is.php  is interpreted at the Web server each time the page is visited  you can only execute PHP scripts through a Web server with PHP installed!  generates (= creates on the fly) (X)HTML or JavaScript or other output that the visitor will see on the client tier  IMPORTANT: a client will never see the PHP code, only the (X)HTML that the Web server returns from the script  the browser doesn’t (need to) understand PHP (different from client-side JavaScript)! 3

4. PHP Popularity http://w3techs.com/technologies/overview/p rogramming_language/all http://w3techs.com/technologies/overview/p rogramming_language/all http://w3techs.com/

5. MySQL http://www.mysql.com/ – “The world’s most popular open source database” http://www.mysql.com/why-mysql/

6. Home page for PHP http://www.php.net Search for: phpinfo

7. Assignment #1 http://csweb.hh.nku.edu/csc301/frank/info.p hp http://csweb.hh.nku.edu/csc301/frank/info.p hp