On Fri, May 18, 2012 at 2:37 AM, Jim Giner <[email protected]>wrote:
> ok - finally had to come up with my own regexp - and am failing.
>
> Trying to validate an input of a time value in the format hh:mm, wherein
> I'll accept anything like the following:
> hmm
> hhmm
> h:mm
> hh:mm
>
> in a 12 hour format. My problem is my test is ok'ing an input of 1300.
>
> Here is my test:
>
> if (0 == preg_match("/([0][1-9]|[1][0-2]|[1-9]):[0-5][0-9]/",$t))
> return true;
> else
> return false;
>
> Can someone help me correct my regexp?
>
>
>
I can not correct your regexp. But I must tell you that trying to tweak a
regex for hours is surely **not productive**. If you got any type of text
processing dont always go for regular expression. This problem can be
solved just by simple string parsing.
Here I have done that for you.
function valid_time($time){
$m = (int) substr($time, -2);
$h = (int) substr($time, 0, -2);
return ($h>=0 && $h<13 && $m>=0 && $m<60);
}
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