Description:
------------
I am trying to filter numbers from the end of a string in a array.

i have a array full of these strings :

$testArr = array('foto_1','foto_45');

$resArr = preg_grep('/[0-9]*$/',$testArr);

and the $resArr array that gets returned from preg_grep, contains the same
strings, i am looking for a array that contains just the numbers that were 
filtered using the regex



Test script:
---------------
<?php

$testArr = array('foto_1','foto_45');

$resArr = preg_grep('/[0-9]*$/',$testArr);

print_r($resArr);

?>

Expected result:
----------------
to see a array full of the numbers what were at the end of the string in the 
input array

something like this :

Array
(
    [0] => 1
    [1] => 45
)

Actual result:
--------------
Array
(
    [0] => foto_1
    [1] => foto_45
)