<?
$text="<select id='w2'>
<option value='1'>1</option>
<option value='2'>2</option>
<option value='3'>3</option>";
preg_match("/<select id='w2'>\r\n<option value='([0-9])'>(.*)<\/option>/s", $text, $m);
preg_match("/<select id='w2'>\r\n(<option value='([0-9])'>(.*)<\/option>)/s", $text, $s);
echo "сначала $s[1]<br> вконце $m[2]";
?>
пробуй)
З.Ы. Да,я извращенец