<?php
    session_register("pommes");
    session_register("poires");
    session_register("bananes");

    if ($action=="destroy") { 
        session_destroy(); 
        header("Location: ".$_SERVER["PHP_SELF"]);
        die();
    }

    if (isset($raz)) {
        switch ($raz) {
            case "pomme":
                session_unregister("pommes");
                break;
            case "poire":
                session_unregister("poires");
                break;
            case "banane":
                session_unregister("bananes");
                break;
        }
        header("Location: ".$_SERVER["PHP_SELF"]);
        die();
    }    

    if (isset($achat)) {
        switch ($achat) {
            case "pomme":
                $pommes++;
                break;
            case "poire":
                $poires++;
                break;
            case "banane":
                $bananes++;
                break;
       }         
       header("Location: ".$_SERVER["PHP_SELF"]);
       die();
    }
?>
Nb Pommes:<?php echo $pommes;?><br />
<a href="<?php echo $PHP_SELF;?>?achat=pomme">Acheter une pomme</a>
<a href="<?php echo $PHP_SELF;?>?raz=pomme">RAZ</a><br/>
Nb Poires:<?php echo $poires;?><br />
<a href="<?php echo $PHP_SELF;?>?achat=poire">Acheter une poire</a>
<a href="<?php echo $PHP_SELF;?>?raz=poire">RAZ</a><br/>
Nb Bananes:<?php echo $bananes;?><br />
<a href="<?php echo $PHP_SELF;?>?achat=banane">Acheter une banane</a>
<a href="<?php echo $PHP_SELF;?>?raz=banane">RAZ</a><br/>
<br/>
<a href="<?php echo $PHP_SELF;?>?action=destroy">Détruire la session</a><br/>

?>

