Warning: MySQL_error(): supplied argument is not a valid MySQL-Link resource in /usr/local/httpd/htdocs/area/include/db_mysql.php on line 299

Warning: mysql_errno(): supplied argument is not a valid MySQL-Link resource in /usr/local/httpd/htdocs/area/include/db_mysql.php on line 303

Error: Can not connect to MySQL server

Error: 

問題解決方法：

我僅僅將host＝localhost更改成host＝127.0.0.1 就可以用，不知為什么？