$something = array(
    'http://www.marleenvanlook.be/admin.php',
    'http://www.marleenvanlook.be/checklogin.php',
    'http://www.marleenvanlook.be/checkupload.php',
    'http://www.marleenvanlook.be/contact.php',
);

foreach($something as $key => $value) {
    $key = 'something' . $key;
    $$key = $value;

    // OR (condensed version)
    // ${"something{$key}"} = $value;
}

echo $something2;
// http://www.marleenvanlook.be/checkupload.php