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From: "J.O. Aho" <user@example.net>
Newsgroups: comp.lang.php
Subject: Re: Verifying time in php
Date: Sun, 14 Oct 2012 20:41:36 +0200
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Xref: csiph.com comp.lang.php:7321

On 14/10/12 19:20, houghi wrote:

> Found finaly the solution. Instead of looking at the seperate values and
> then trying to combine them, it is better to combine them and then
> evaluate them with
> $testtime=$_POST['hours'].$_POST['minutes'].$_POST['seconds'];
>
> $hours  $min    $sec $testtime Valid?
> -       -       -	-	No
> 1       -       -	1	Yes
> 1       -       1	11	Yes
> -       1       -	1	Yes
> 1       1       1	111	Yes
> A       -       -	A	No
> 1       A       -	1A	No
> 1A      -       -	1A	No
>
> That way I can just do a 'is_numeric($testtime)' and no need to use
> is_set or anything else.

an alternative is:

if you have <input name="variable[xxx]" ...> in your form

then you can in your script
$ok = true;
foreach($_POST['variable'] as $value) {
   if(!is_numeric($value))
     $ok = false;
}

even if your method works now, I wouldn't bet on it in the future.

-- 

  //Aho