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>';
}
}
}
}
}
}

DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware.

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