Here is an example of what I want to do, only I want it with PHP and not Javascript:

Code:
<!-- EMAIL ANTILEECH SCRIPT by Frederic Andrieux & Boweries Inc. Ltd. (c)2002 -->
<!-- http://www.boweries.com/scripts/email_antileech.shtml -->
<script language="javascript">
function sendmail (address) {
address = address.split("*"); // Change the * to any string for better personalization
address = address.join("@");
window.open ('mailto:'+address,'_blank');
}
</script>
<!-- END EMAIL ANTILEECH SCRIPT -->
What I'm looking for will work in addition to the form script I got here. All it has to do is to go through every webpage when it's accessed and grap all the "mailto:youremail@address.com" type links and then change the "@" to something different when these links are clicked or used. So basically it spambots won't be able to get anything, but folks are still able to send you an e-mail.

Is this possible?
- Deathbliss