message: we finish pack now
diff: @@ -1166,12 +1166,17 @@ void php_swoole_unserialize(void * buffer, size_t len, zval *return_value, zval
  static PHP_METHOD(swoole_serialize, pack)
  {
  - long size = -1;
  + zval *zvalue;
  - if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &size) == FAILURE)
  + if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zvalue) == FAILURE)
  {
  RETURN_FALSE;
  }
  + swSeriaG.pack_string = 1;
  + zend_string *z_str = php_swoole_serialize(zvalue);
  +
  + RETURN_STR(z_str);
  +
  }
  @@ -1197,8 +1202,6 @@ static PHP_METHOD(swoole_serialize, unpack)
  }
  -
  -
  PHP_METHOD(swoole_serialize, __construct)
  {
  return;
  