[RESOLVED] populate select list with time(int.val 15 minutes)

[cassius]

Hi
Anyone have a good idea for a loop that could populate a select list(form) with time values from 08:00 - 18:00 (24h time format) with an interval of 15 min between each <option value> ?

<select name='time'>
<option value='08:00'>08:00</option>
<option value='08:15'>08:15</option>
<option value='08:30'>08:30</option>
...
<option value='18:00'>18:00</option>
</select>

Kinda stuck with this one...help would be much appreciated.

[cassius]

Do not know if this is considered as a "good" solution to the problem, but it works for me. Feel free to give me som other alternatives if you have a better way :-)

function make_timelist($preval, $postname){
echo "<select name='".$postname."' class='formstyle'>";
echo "<option value=''>...</option>";
	for($x=730; $x<1815; $x=($x+15)){
		if($x < 1000){
			$val	=	'0'.$x;
		}else $val	=	$x;
	$thistime	=	substr($val,0,2).":".substr($val,2,2);
	echo "<option value='".$thistime."'>".$thistime."</option>";
		if(substr($val,2,2)=='45'){
			$x	=	($x+40);
		}//end if
	}//end for
echo "</select>";
}//end function make_timelist

[Weedpacket]

Try some arithmetic:

$start = 8*60+0;
$end = 18*60+0;

for($time = $start; $time<=$end; $time += 15)
{
	$minute = $time%60;
	$hour = ($time-$minute)/60;

echo sprintf('%02d:%02d', $hour, $minute), "\n";
}

(More long-winded than it needs to be so that it's more obvious what's going on. Obviously leaves out further cosmestic stuff.)

[cassius]

Thanks a lot. I agree that this is a far better solution :-)