PHP/MySQL Tutorial

Introduction to Database :

Goal of this tutorial

1. Not to teach everything about PHP,
2. but provide the basic knowledge
3. Explain code of examplesProvide some useful references
   
   What is PHP?
   
   
   • PHP == ‘Hypertext Preprocessor’
   • Open-source, server-side scripting language
   • Used to generate dynamic web-pages
   • PHP scripts reside between reserved PHP tags
   • This allows the programmer to embed PHP scripts within HTML pages
    

 What is PHP (cont’d)

• Interpreted language, scripts are parsed at run-time rather than compiled beforehand
• Executed on the server-side
• Source-code not visible by client
• View Source’ in browsers does not display the PHP code
• Various built-in functions allow for fast development
• Compatible with many popular databases 
• What does PHP code look like?
• • Structurally similar to C/C++
  • Supports procedural and object-oriented paradigm (to some degree)
  • All PHP statements end with a semi-colon
  • Each PHP script must be enclosed in the reserved PHP tag
  •  
  •  

  • <?php

       …
    ?>

    Comments in PHP

    •         Standard C, C++, and shell comment symbols
    •  
    •     // C++ and Java-style comment
           # Shell-style comments
           /* C-style comments
           These can span multiple lines */