我突然想到这个:
Warning: mysql_connect(): in C:\xampp\htdocs\login.php on line 12
cannot connect to server A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
我使用此代码:
$dbhost="localhost";
$dbusername="dbusername";
$dbpassword="dbpassword";
$db_name="database";
mysql_connect("$dbhost", "$dbusername", "$dbpassword") or die("cannot connect to server". mysql_error());
mysql_select_db("$db_name") or die("cannot select db". mysql_error());
将主机更改为:
$dbhost="127.0.0.1";
一切都恢复正常。
为什么会这样?如何修复它像以前一样工作? 谢谢!
答案 0 :(得分:0)
您使用的是Linux吗?然后它发生,因为插座。如果指定127.0.0.1 PHP使用TCP / IP通信。如果您键入localhost,它会尝试与套接字(mysql.sock)进行通信。 MySQL可能未配置为支持它们,或者您的系统阻止PHP访问套接字文件。
编辑:可能相关:mysql_connect (localhost / 127.0.0.1) slow on Windows platform