<?php
header('Content-type:text/html; charset=UTF-8');    // encodage UTF-8
session_start();
if(!empty($_GET['source'])){
    show_source(__FILE__);
    exit();
}
?>
<!DOCTYPE HTML>
<html>
<head>
    <!-- <meta http-equiv="content-type" content="text/html; charset=utf-8" /> -->
    <meta charset="utf-8">
    <meta name="author" content="" />
    <meta name="copyright" content="Le contenu de ce site est protégé par les droits d'auteur." />
    <meta name="description" content="Description complete"> 
    <meta name="keywords" content="" />
    <title>CESSION page 1</title>
</head>
<body>
<?php

echo 'Page numéro 1    ' . '</br>';
$color = '';
if(!empty($_POST['color'])){
    $color = $_POST['color'];
    $_SESSION['favcolor'] = $color;
} else if(!empty($_SESSION['favcolor'])) {
    $color = $_SESSION['favcolor'];
}

echo 'Contenu de la variable $_SESSION <pre><code>';
var_dump($_SESSION);
echo '</code></pre>';

echo <<<form
<form action="" method="post">
<label for="color">Couleur</label><input type="text" id="color" name="color" value="{$color}" /><br />
<input type="submit" value="clic me baby !!" />
</form>
form;

echo '<br /><a href="page2.php?' . SID . '">page 2</a>';

?>
<footer style="background-color:#8892BF; text-align-center; height:50px;line-height:50px;vertical-align:middle;">Version de php :&nbsp;
<?php
echo phpversion();
?>
</footer>
</body>
</html>