I have a site that uses several start and end times and also various other times that have to be scheduled. I needed to be able to narrow down the listing with start and end times. I also wanted to be able to specify various time increments in minutes. My last requirement was that I needed to be able to show what time was stored in the database by specifying the SELECTED attribute for the option statement.

This is something I am posting to give back to this site as I have used it over and over to help me in a large project I am finalizing in the next week or so.

By : fbnewtz

function create_time_dropdown($start,$stop,$mininc,$hoursel,$minsel)
{
for ($hour = $start; $hour <= $stop; $hour++)
{
if ($hour == '0')
{
$disphour = '12';
$ampm = 'AM';
} else if ($hour >= '13' && $hour <= '21')
{
$test = $hour - 12;
$disphour = '0' . $test;
$ampm = 'PM';
} else if ($hour >= '22' && $hour <= '23')
{
$disphour = $hour - 12;
$ampm = 'PM';
} else {
$disphour = $hour;
$ampm = 'AM';
}

for ($min = 0; $min <= 59; $min += $mininc)
{
if ($hour >= '1' && $hour <= '9')
{

if($min >= '0' && $min <= '9')
{
if ($hour == $hoursel && $min == $minsel)
{
echo '<option value="0' . $hour . ':0' . $min . ':00" selected>0' . $disphour . ':0' . $min . ' ' . $ampm . '</option>';
} else {
echo '<option value="0' . $hour . ':0' . $min . ':00">0' . $disphour . ':0' . $min . ' ' . $ampm . '</option>';
}
} else {
if ($hour == $hoursel && $min == $minsel)
{
echo '<option value="0' . $hour . ":" . $min . ':00" selected>0' . $disphour . ':' . $min . ' ' . $ampm . '</option>';
} else {
echo '<option value="0' . $hour . ":" . $min . ':00">0' . $disphour . ':' . $min . ' ' . $ampm . '</option>';
}
}
} else {
if ($min >= '0' && $min <= '9')
{
if ($hour == $hoursel && $min == $minsel)
{
echo '<option value="' . $hour . ':0' . $min . ':00" selected>' . $disphour . ':0' . $min . ' ' . $ampm . '</option>';
} else {
echo '<option value="' . $hour . ':0' . $min . ':00">' . $disphour . ':0' . $min . ' ' . $ampm . '</option>';
}
} else {
if ($hour == $hoursel && $min == $minsel)
{
echo '<option value="' . $hour . ":" . $min . ':00" selected>' . $disphour . ':' . $min . ' ' . $ampm . '</option>';
} else {
echo '<option value="' . $hour . ":" . $min . ':00">' . $disphour . ':' . $min . ' ' . $ampm . '</option>';
}
}
}
}
}
}

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