PHP实现3DES代码

1. $key   = Util_Const::EXCHANGE_KEY;
   $iv    = Util_Const::EXCHANGE_IV; 
   $method = MD5('goods_pool');
   $res = openssl_encrypt($time, 'des-ede3-cbc', $key, OPENSSL_RAW_DATA, $iv);
   $str = urlencode(base64_encode($res));