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Date: Sun, 14 Oct 2012 21:28:49 +0200
From: Luuk <luuk@invalid.lan>
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Subject: Re: Verifying time in php
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On 14-10-2012 11:45, houghi wrote:
> I have a form that has the following entry fields:
> hours
> minutes
> seconds
>
> I need the time in seconds and that works:
> $realtime=$_POST['hours']*3600+$_POST['minutes']*60+$_POST['seconds'];
>
> However people can fill out nothing or they could enter characters
>
> What is the easiest way to verify if what the people filled out is
> correct? I have tried, but I get lost in the if statements.
>
> Extra difficult is that they must not fill out all three. Only one is
> enough. e.g.
> 1 hour and no minutes or second gives 3600
> 1 hour, 1 minute and 1 second gives 3661
> 1 hour and 'X' should give an error.
> All empty should give an error
> empty hour 70 minutes and 75 seconds gives 4275.
> Hours of more then 24 will be possible as well.
> I might even add number of days.
>
> If the last one gives an error, but it makes the life much easier, I can
> live with that
>
> It is the fact that they do not need to fill out all three that I am
> stuck.
>
> What I have tried is first to see if all are empty
> Next try to see if each one is not a number
> Then I need to figure out if there is a combination of some of it.
>
> And that is when I get lost in the if statements and loops in loops.
>
> I am sure there is an easy way to tell if all is nice and works well,
> but how? Seaching google gave me transfering from seconds to H:i:s, but
> that is not what I want.
>
> houghi
>

whats wrong with this code:
<?php
$h=13;
$m=14;
$s=15;
$t=sprintf("%02d:%02d:%02d", $h, $m, $s);
$x=strtotime($t);
print $x."\n";
print date("l dS  F Y H:i:s ",$x)."\n";

You only need some more validation on the 'strtotime' and 'date' 
functions.....