Online PHP editor | refs for kQNoA

<?php function pad_key($key){ // key is too large if(strlen($key) > 32) return false; // set sizes $sizes = array(16,24,32); // loop through sizes and pad key foreach($sizes as $s){ while(strlen($key) < $s) $key = $key."\0"; if(strlen($key) == $s) break; // finish if the key matches a size } // return return $key; } var_dump(base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, pad_key("bite"), 717098756, MCRYPT_MODE_ECB)));