<?php
    /*
        Mysql Connection here

    */

    $result = mysql_query('SELECT id_usagers FROM tblusagers
               WHERE nom_usager = "'. mysql_real_escape_string($_POST['username']).'"
               AND mdp = "'. mysql_real_escape_string($_POST['password']).'" ');

    $id = mysql_fetch_object( $result);

    var_dump( $id);
?>