GetBetween in combination with file_get_contents

[boodschap]

I want a certain part of an external webpage on my page. I searched the internet and found the function GetBetween, which I've put in my page:

<script>
function GetBetween($content,$start,$end){
    $r = explode($start, $content);
    if (isset($r[1])){
        $r = explode($end, $r[1]);
        return $r[0];
    }
    return '';
}
</script>

I want a certain table from this website: http://www.keynet.tv/agenda.php?q=us...0381&f=month/1

so I coded this:

<?php
$homepage = file_get_contents('http://www.keynet.tv/agenda.php?q=user/show/40381&f=month/1');
echo GetBetween($homepage, "<h1>Agenda</h1>", "<!-- LEGENDE -->");
?>

but that doesn't work...

[boodschap]

Solution was easy: function GetBetween should be in "<?php"