<?php if ($Article->image) { ?>
<meta property="og:image" content="https://<?= $_SERVER['HTTP_HOST'] . '/' . htmlspecialchars($Article->thumb('640x')) ?>" />
<?php } ?>
<?php if ($Article->image) { ?>
<meta property="og:image" content="https://<?= $_SERVER['HTTP_HOST'] . '/' . htmlspecialchars($Article->thumb('640x')) ?>" />
<?php } ?>