How to connect to multiple MySQL servers from PHP

Most of the PHP developers remember only the first three parameters of mysql_connect (host, username, password). There is a fourth parament called $new_link a boolean existscreate a new link. The default value is set to false.

<?php

    $link = mysql_connect('localhost', 'mysql_user', 'mysql_password');

    //create a new link/resource

    $linkRemote = mysql_connect('remotehost', 'mysql_user', 'mysql_password', true); 

    //pass the $link/$linkRemote as second argument to 

    //mysql_select_db,mysql_query functions to work on 

    //both the servers simultaneously. 

    //do stuffs

    //close both the connections

?>
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