remove mysqli_connect warning displaying in page

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");

i have this code, and its working without any problem. But if i try to input a wrong sql server or test it to perform an error. This will display:

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

i don't want the warning to display if ever theres a problem in connecting the sql server. i just want my own error to display.

Answer 1

2 possible options:

• set the error_reporing level to NOT to show warnings http://php.net/manual/en/function.error-reporting.php
• put a @ sign before mysqli_connect, this supresses the warning message