urldecode in PHP

urldecode — Decodes URL-encoded string

Syntax:string urldecode ( string $str )

Decodes any %## encoding in the given string. Plus symbols ('+') are decoded to a space character.

Parameters:

str-The string to be decoded.

Return Values:Returns the decoded string.

Example #1 urldecode() example
<?php
$query = "my=apples&are=green+and+red";

foreach (explode('&', $query) as $chunk) {
$param = explode("=", $chunk);

if ($param) {
printf("Value for parameter \"%s\" is \"%s\"<br/>\n", urldecode($param[0]), urldecode($param[1]));
}
}
?>

Note:

Warning:
The superglobals $_GET and $_REQUEST are already decoded. Using urldecode() on an element in$_GET or $_REQUEST could have unexpected and dangerous results.