note 58998 added to function.ereg-replace

I'm trying to format some output of code so that whenever a variable appears in the code, it is in a different color. example $var= would be replaced by <span class="blue">$var=</span> I've tried several things with preg_replace and eregi_replace but I can't seem to make it work. Can anyone help me with this? Thanks Dan ---- Manual Page -- http://www.php.net/manual/en/function.ereg-replace.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+58998 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+58998&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+58998&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+58998&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+58998&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+58998&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+58998&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+58998&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+58998&report=yes Search -- http://master.php.net/manage/user-notes.php