Mysql: Connect to a MySQL database

<?php
/** * Edit the database settings to your own.
* To use, just include the function and 
* call it using <?php db_connect(); ?>
* * You can then do your database queries
*///
Edit your database settings
$db_host = "localhost";
$db_user = "username";
$db_pass = "password";
$db_name = "databasename";
function db_connect()
{   
       global $db_host;   
       global $db_user;   
       global $db_pass;
       global $db_name;   
       $connection = mysql_connect($db_host,$db_user,$db_pass);  
       if (!(mysql_select_db($db_name,$connection)))
       {       
               echo "Could not connect to the database";  
         }
         return $connection;
}
?>