- var_dump: documentation ( source)
<?php
$text = 'xujia';
$suffix = 'aaaaaa';
$text .= $suffix;
$key = 'aaa';
$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB);
$result = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $crypttext, MCRYPT_MODE_ECB);
var_dump($result);
?>