MAIL() en langage php :(

<?php  
#include "smtpconnection2.h" 
$db = mysql_connect('localhost','root',"") or die ("erreur de connexion");  
mysql_select_db('fastcarlocation',$db) or die ("erreur de connexion base");  
$subject = "rental car  "; 
$message = "Hello! since you don't conforme your requist after 2 days so fast car location cancel your requist."; 
$from = " you@localhost"; 
$headers = "From: $from"; 
$h=" m_23445@live.fr" 

mail($h,$subject,$message,$headers,$parameters) ; 

?>