- var_dump: documentation ( source)
- str_replace: documentation ( source)
- session_start: documentation ( source)
- session_encode: documentation ( source)
<?php
session_start();
$_SESSION = array('a' => 5, 'b' => 'á', 'c' => 55);
var_dump($_SESSION);
$str = session_encode();
var_dump($str);
$str = str_replace('á', 'a', $str);
var_dump($str);