Recently I’ve been watching some “PHP, the good part”, here’s some thing i think good in it XD.

Integration with Web Pages

One of the greatest features of PHP is that it gives you the ability to generate HTML based on integration with a web server, be that Apache, IIS, or any other leading web server.

$_GET

The next superglobal entity to discuss is $_GET. The $_GET value is created automatically with the existence of a query string within a URL, or if a form is submitted with the

It’s important to understand that the $_GET array is refreshed on each page call, so you have to pass it on to each page being called further down the call stack. It’s different than the session concept in this regard.

$_POST

$_REQUEST

You can control the overall environment of superglobal arrays with the php.ini directive known as variables_order. The setting on my server is GPC. This means that the arrays are loaded and created in GET, POST, and COOKIE order, with the latter elements taking precedence over the former if they are similarly named. The “G” stands for GET, the “P” for POST, and the “C” is for cookie. If you remove one of the letters in GPC, save the .ini file and restart your server. The array rep- resented by that letter will not be created in the superglobal space on the web server.