--TEST-- openssl_encrypt() crash with old OpenSSL --SKIPIF-- <?php if (!extension_loaded("openssl")) print "skip"; ?> --FILE-- <?php openssl_encrypt('', 'AES-128-CBC', 'foo'); var_dump("done"); ?> --EXPECTF-- Warning: openssl_encrypt(): Using an empty Initialization Vector (iv) is potentially insecure and not recommended in %s on line %d string(4) "done"