Search Term:
<TAG>(.*)</TAG>

Replace Term:
\$$1 = \$_POST['$1'];
if (\$$1) echo "<tr><td>$1</td><td>\$$1</td></tr>";
else echo "";

http://screenflicker.com/mike/code/textmate-regex-replace/

search for anything in-between two <TAG>'s and then replace the found string into the PHP if/else staement. $1 is wher TextMate stores the found string. (see http://screenflicker.com/mike/code/textmate-regex-replace/)

RegEx to find replace in TextMate

regex, php, textmate, search, replace

Regular Expression