删除页面中显示的mysqli_connect警告

Question

$mysqlServer = "***";
$mysqlDb = "***";
$mysqlUser = "***";
$mysqlPass = "***";

$conn = mysqli_connect($mysqlServer, $mysqlUser, $mysqlPass) or die("failed to connect to db");
mysqli_select_db($conn, $mysqlDb) or die("failed to connect select db");

我有这个代码,它的工作没有任何问题.但是,如果我尝试输入错误的SQL服务器或测试它来执行错误.这将显示:

Warning: mysqli_connect(): (HY000/2002): 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.
failed to connect select db

如果连接sql server时出现问题,我不希望显示警告.我只想要显示自己的错误.

Answer 1

2种可能的选择:

• 将error_reporing级别设置为NOT以显示警告http://php.net/manual/en/function.error-reporting.php
• @在mysqli_connect之前放置一个符号,这会抑制警告消息