// 密文及密钥 $pn = '1fbf2605f954fad3ba18115000735aee'; $masterSecret = '126781'; // 参数设置 $encryptMethod = 'aes-128-cbc'; $iv = '0000000000000000'; // 取16位密钥 $key = $masterSecret; while(strlen($key) < 16){ $key .= $masterSecret; } $key = substr($key, 0, 16); // 解密 $result = openssl_decrypt(hex2bin($pn), $encryptMethod, $key, 1, $iv); echo $result;