ecomonde/change_map.php

<?php
include "header.php";
$nom = "map.jpg";

$uploaddir = './medias/'.$hash.'/';
$uploadfile = $uploaddir . basename($nom);

$extensions_valides = array( 'jpg' , 'jpeg' );
$extension_upload = strtolower(  substr(  strrchr($_FILES['userfile']['name'], '.')  ,1)  );

if ( in_array($extension_upload,$extensions_valides) ) {

$resultat = move_uploaded_file($_FILES['userfile']['tmp_name'],$uploadfile);

if ($resultat) header("location:index.php?msg=5");
else {
    header("location:index.php?msg=6");
}

}

else {
    header("location:index.php?msg=6");
}

?>