Online PHP editor | output for 5AuXU

<?php function xor_this_with($input, $key = '') { $return = ''; $length = strlen($input); $key_length = strlen($key); for ($i = 0; $i < $length; $i++) { $tmp = $input[$i]; for ($j = 0; $j < $key_length; $j++) { $tmp = chr(ord($tmp) ^ ord($key[$j])); } $hash .= $tmp; } return $return; } $iv = base64_decode('ifblUEQdFIheTrKCCfURRzEvu9h4xwlX2cElHybes90='); $plain = 's:1:"1";'; $padded = str_pad($plain, 32); $hash = xor_this_with($iv, $plain); $hash = xor_this_with($hash, $padded); print base64_encode($hash);