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Re: Verifying time in php [message #179395 is a reply to message #179378]

Sun, 14 October 2012 21:12

Denis McMahon
Messages: 634
Registered: September 2010

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Senior Member

On Sun, 14 Oct 2012 13:50:51 +0200, houghi wrote:

> Denis McMahon wrote:
>>> 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.
>>
>> Verify it is correct in what way?
>>
>> If you want to record the time the data was entered, it would make more
>> sense to use the system time, and not collect the data in the form at
>> all.
>>
>> If you want the user to specify the time that an event happened in the
>> past, or is to happen in the future, give them a select list with
>> options of 1-31 for day, Jan-Dec for month, <whatever range suits> for
>> year, 00-23 for hours, 00-59 for mins, 00-59 for seconds. Convert the
>> form data to an actual timestamp and do whatever validation and
>> verification you want.
>
> Sorry for the confiusion. I hope the link I gave clariefied things a
> bit. http://houghi/gopro.php You can enter the number of hours, minutes
> and seconds yourself.
> So it is to verify if the human entry is correct.
> This is used for calcualtions.
>
> Say that somebody would like to do a timelaps over a period of 8 hours
> with an interval of 1 image every second and a framrate of 30. This
> would result in a movie that is 16 minutes long.
>
> The time can be almost anything. You could have a project that takes 10
> days (240 hours) and with a 60 second interval that would be an 8 minute
> movie.
>
> So one can fill out hours, minutes and seconds. However if nothing is
> filled out, it is not correct. At least one must be filled out.
> Also it must be numbers and not nececerily limited to 59 minutes. If you
> have a detail of 117 minutes, you should be able to do that and not
> first calculate back to 1 hour and 57 minutes.
> So dropdown is not an option (And I dislike dropdown options for
> minutes)
>
> So it is not so much time as it is duration.
>
> I am able to test each if there is a numeric field. I can't get the
> combination of the fields working:
> 1) One of the time fields must be filled out.
> 2) None of the time fields must contain non-digits.

OK, given three values in your form:

<p>Hours: <input type="text" size="4" name="hours"><br>

Minutes: <input type="text" size="4" name="mins"><br>

Seconds: <input type="text" size="4" name="secs"></p>

Then:

<?php

$secs = 0;

if ( isset( $_POST["hours"] ) )
$secs += 3600 * intval( $_POST["hours"] );

if ( isset( $_POST["mins"] ) )
$secs += 60 * intval( $_POST["mins"] );

if ( isset( $_POST["secs"] ) )
$secs += intval( $_POST["secs"] );

// $secs is now the combined value of
// whatever your hours, minutes and
// seconds inputs were, apply some limits

$secs = max( $secs, 1 );
$secs = min( $secs, 86400 );

// now if you want you can normalise $secs
// into hours : minutes : seconds

$hh = $secs / 3600;
$mm = ( $secs - $hh * 3600 ) / 60;
$ss = ( $secs - $hh * 3600 ) % 60;

$timestr = sprintf( "%02d:%02d:%02d", $hh, $mm, $ss );

?>

Unless I've totally misunderstood the problem, which is quite possible.

Rgds

Denis McMahon

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[Message index]

		Verifying time in php By: houghi on Sun, 14 October 2012 09:45
		Re: Verifying time in php By: Denis McMahon on Sun, 14 October 2012 10:25
		Re: Verifying time in php By: houghi on Sun, 14 October 2012 11:50
		Re: Verifying time in php By: Denis McMahon on Sun, 14 October 2012 21:12
		Re: Verifying time in php By: houghi on Sun, 14 October 2012 10:30
		Re: Verifying time in php By: J.O. Aho on Sun, 14 October 2012 13:03
		Re: Verifying time in php By: houghi on Sun, 14 October 2012 15:16
		Re: Verifying time in php By: Michael Fesser on Sun, 14 October 2012 15:50
		Re: Verifying time in php By: M. Strobel on Sun, 14 October 2012 16:22
		Re: Verifying time in php By: Peter H. Coffin on Sun, 14 October 2012 16:41
		Re: Verifying time in php By: Martin Leese on Sun, 14 October 2012 17:06
		Re: Verifying time in php By: houghi on Sun, 14 October 2012 17:41
		Re: Verifying time in php By: Michael Fesser on Sun, 14 October 2012 19:03
		Re: Verifying time in php By: houghi on Sun, 14 October 2012 20:39
		Re: Verifying time in php By: Christoph Becker on Sun, 14 October 2012 15:52
		Re: Verifying time in php By: houghi on Sun, 14 October 2012 17:20
		Re: Verifying time in php By: J.O. Aho on Sun, 14 October 2012 18:41
		Re: Verifying time in php By: Christoph Becker on Sun, 14 October 2012 18:49
		Re: Verifying time in php By: houghi on Sun, 14 October 2012 20:32
		Re: Verifying time in php By: Richard Damon on Sun, 14 October 2012 15:44
		Re: Verifying time in php By: Luuk on Sun, 14 October 2012 19:28

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