Test PHP connection MySQL successful code sharing _php instance

The method is simple:

Save the following code as test.php and put it into the web directory to execute.

Copy Code code as follows:

<?php
/**
* Test PHP connection with MySQL
* Editor: Www.jb51.net
*/
$link =mysql_connect ("localhost", "root", "123");
if (! $link) echo "faild! connection error, username password is incorrect";
else echo "ok! can connect";
?>

where the mysql_connect () function of the parameters are: MySQL server name or IP, mysql user name, MySQL user password.