* Thus wrote Shmuel ([EMAIL PROTECTED]):
> file_1.ext
> file_2.ext
> file_3.ext
> file_10.ext
> file_40.ext
>
> function mycmp($a, $b) {
> if ($a == $b) {
> return 0;
> }
> $a_n = preg_match("/\D+(\d+)\D+/", $a, $a_out);
> $b_n = preg_match("/\D+(\d+)\D+/", $b, $b_out);
>
>
> return ($a_n[1] < $b_n[1]) ? -1 : 1;
you need to use the $x_out variables:
return ($a_out[1] < $b_out[1]) ? -1 : 1;
if all the names are prefixed with 'file_' it might be a bit more
efficiant if you do something other than preg_match():
$a_n = (int) substr($a, 5); // (int) forces 10.ext -> 10
$b_n = (int) substr($b, 5);
return ($a_n < $b_n) ? -1 : 1;
Curt
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