XML Cleanup Regex

Im trying to clean up xml data of illegal characters. I need a pointer as to how to get a regex to perform this. Here is my feable attempt -> <?php header('Content-type: text/plain'); $foo = '<title>It\'s a test</title>'; //$bar = preg_replace('/[^\w\s<>\/]+/', '&apos;', $foo); $bar = preg_replace('/(<title>)([\'])(<\/title>)/', '$1' . '&apos;' . '$3', $foo); echo $bar; ?> Im trying the 2nd way, because I want to only do this clean up between certain tags.. Thanks for any help you may provide. -- Gerard Samuel http://www.trini0.org:81/ http://dev.trini0.org:81/