Online PHP editor | output for g816m

<?php function encodeString($str) { for ($i = 0; $i < 5; ++$i) { $str = base64_decode(strrev($str)); } return $str; } var_dump(encodeString('=AFVxIkVWRWYSdlUhRVbwh1YqZkcUVVOhFGbWlXVtFDa')); var_dump(encodeString('=AFVxI1VrRWYSdlUhRVbwh1YqZkcUVVOhFGbWlXVtFDa')); var_dump(encodeString('==AUUFjQWZlWX10VSFmUtBnUWdkUzVlbOd3VGpleVxGZaZ1aKVlV650cidkRoRVb4plUxA3VWZFa0ImVaVlUtFDaW1Ge1Z1aJhnVGFUP')); var_dump(encodeString('==AUUFjQWZFZhJVbShlVrZlaTVEczZlbjVjVxIVWS1GcoZVbSZUWVx2cStWMLJFbSV1Yx82dVJDehFWMaRVVrpVaZZFczZ1aJhnVGFUP')); var_dump(encodeString('==AUUFjQWZlVLJVbSl1VthnUTVkWYRlVOBjVWpFMhZEaoV1MoRXVxQ2ViVEMwQmRkVlVxA3cZFjU3JmVKd3VqZ0VVFjSZZlM0gnVGFUP'));