PHP 5 Forms - Validate E-mail and URL This chapter shows how to validate names, e-mails,

The PHP superglobals $_GET and $_POST are used to collect form-data. PHP - A Simple HTML

PHP 5 Global Variables - Superglobals Superglobals were introduced in PHP 4.1.0, and are built-in variables that

PHP 5 Functions The real power of PHP comes from its functions; it has more than

The elements in an array can be sorted in alphabetical or numerical order, descending or ascending.

PHP 5 Operators PHP Operators Operators are used to perform operations on variables and values. PHP