How i can add something after each URL ?!

like replace
<a href="http://website.com"> Text with something like

<a href="http://website.com"> text Link to : http://website.com ?!


my problem is that <a href="http://website.com">
can also be <a href="http://website.com class=link target_new , so it's a little bite hard to do it with explode then rebuild the html code, so i must to use some magic like preg replace