(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
$_POST — HTTP POST variables
An associative array of variables passed to the current script
via the HTTP POST method when using application/x-www-form-urlencoded
or multipart/form-data as the HTTP Content-Type in the request.
Example #1 $_POST example
<?php
echo 'Hello ' . htmlspecialchars($_POST["name"]) . '!';
?>
Assuming the user POSTed name=Hannes
The above example will output something similar to:
Hello Hannes!
Note:
This is a 'superglobal', or automatic global, variable. This simply means that it is available in all scopes throughout a script. There is no need to do global $variable; to access it within functions or methods.