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<?php
    session_start();
?>

<html>
    <head>
        <meta charset="utf-8">
        <title>PHP Session</title>
    </head>
    <body>
        <?php
            $_SESSION["fav_color"] = "green";
            $_SESSION["fav_animal"] = "cat";
            echo "Session variables are set.";
        ?>
    </body>
</html>

<?php
    session_start();
?>

<html>
    <head>
        <meta charset="utf-8">
        <title>PHP Session</title>
    </head>
    <body>
        <?php
            echo "Favorite color is ".$_SESSION["fav_color"];
            echo '<br>';
            echo "Favorite animal is ".$_SESSION["fav_animal"];

            echo '<br>';
            print_r($_SESSION);
        ?>
    </body>
</html>