<?php
require_once 'app/Mage.php';  
umask(0);  
Mage::app('default');
 
try{
	//début du code
	$db_config = Mage::getConfig()->getResourceConnectionConfig("default_setup");
	$host = $db_config->host;
	$user = $db_config->username;
	$pwd = $db_config->password;
	$db_name = $db_config->dbname;
	echo '<br />host : '.$host;
	echo '<br />user : '.$user;
	echo '<br />pwd : '.$pwd;
	echo '<br />db_name : '.$db_name;
}catch (Exception $e){
	die($e->getMessage());
}
?>