php regex via using preg

i have variable $play made of characters , numbers. example:

$play = "blah05"

how use preg_match() 05? $regexp correct?

$regexp = "/^[^0-9]/"; if (preg_match($regexp, $play, $matches)) {    echo "matches[0]"; }

if want numbers end, regexp should this:

$regexp = '/(\d+)$/';

if want numbers anywhere in string:

$regexp = '/(\d+)/';

and var_dump($matches); see results , choose option best you.

if (preg_match($regexp, $play, $matches)) {    var_dump($matches); }

Bready