Şu kod sayesinde yapabilirsiniz;

$adres = $_SERVER['SERVER_NAME'].$_SERVER['SCRIPT_NAME'];
echo "

<script>(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = \"//connect.facebook.net/tr_TR/sdk.js#xfbml=1&version=v2.4\";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

";

?>