Online PHP editor | refs for 7n0VC

<?php $key_size = 25; $key = ''; for ($i = 0; $i < $key_size; $i++) { $key.= chr(mt_rand(0, 255)); } $a = openssl_encrypt(str_repeat('z', 50), 'rc4-40', $key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING); $b = openssl_encrypt(str_repeat('z', 50), 'rc4', $key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING); echo $a == $b ? 'good' : 'bad';