添加问题详细描述：https://bugs.php.net/bug.php?id=46851

Author: arieslee

Connection.php

@@ -77,6 +77,7 @@ public static function className()
      * Establishes a DB connection.
      * It does nothing if a DB connection has already been established.
      * @throws RedisException if connection fails
+     * @example 问题详细描述 https://bugs.php.net/bug.php?id=46851
      * @see connect()
      * @param string    $host
      * @param int       $port