Thursday, March 8, 2012

Getting Started with PHP: Basic Rules

PHP is a programming language. This means that it can evaluate data and output various responses based upon a set of instructions written by the programmer. Below are some basic rules to keep in mind when you work with PHP:




  • Every declaration in PHP begins with : 
<? php 

and ends with: 

? >



  • PHP is case sensitive. So be careful if you use camelCase to distinguish between words in variables.
  • PHP code can be written before the <html> tag in a webpage.
  • PHP code WILL NOT appear in an html document if XHTML is written in between <?php and ?>  tags. 
  • The only way to add XHTML to PHP output is to use echo or  print

Basically:




The above is all valid!

No comments:

Post a Comment