[TxMt] PHP delimiter highlighting

[Jeffrey R. Gould]

I've been doing some searching today and haven't come up with much  
useful information on the subject, so I'm hoping someone here might  
know how to add highlighting to just the <?php , <?  &  ?>  tags? I  
tried using source.php, but obviously that's too general.

Also, on this topic, is there any place to find good documentation on  
the available scope selectors?

Thanks,  -Jeff