How to validate variable by my scheme?

[notset]

Hello,

$uca scheme: any_digits dash any_digits

for example: 1-2 or 85521-99874

How to check if variable has this scheme?

Thank's

[Installer]

This should work:

$arr = explode('-', $str);
$valid = false;
if ((count($arr) == 2) && ctype_digit($arr[0]) && ctype_digit($arr[1])) {
    $valid = true;
}

[bradgrafelman]

Hm. I would probably use a regular expression here...

if(!preg_match('/^[\d]+-[\d]+$/', $uca)) {
     // variable doesn't match scheme
} else {
     // variable does match scheme
}

EDIT: I see Installer sneaked a post in before I did. Out of curiosity, I did some benchmarking, and found that there is only minimal speed difference.