How to display all dates between two given dates? - php

Question

I am creating a calendar in which I have to mark all the dates between two given dates. But the dates are not static they are taken from database. For example:
<?php
$dateYear = ($year != '')?$year:date("Y");
$dateMonth = ($month != '')?$month:date("m");
$date = $dateYear.'-'.$dateMonth.'-01';
$currentMonthFirstDay = date("N",strtotime($date));
$totalDaysOfMonth = cal_days_in_month(CAL_GREGORIAN,$dateMonth,$dateYear);
$totalDaysOfMonthDisplay = ($currentMonthFirstDay == 7)?($totalDaysOfMonth):($totalDaysOfMonth + $currentMonthFirstDay);
$boxDisplay = ($totalDaysOfMonthDisplay <= 35)?35:42;
?>
<div id="calender_section">
<h2>
<<
<select name="month_dropdown" class="month_dropdown dropdown"><?php echo $this->getAllMonths($dateMonth); ?></select>
<select name="year_dropdown" class="year_dropdown dropdown"><?php echo $this->getYearList($dateYear); ?></select>
>>
</h2>
<div id="event_list" class="none"></div>
<div id="calender_section_top">
<ul>
<li>Mon</li>
<li>Tue</li>
<li>Wed</li>
<li>Thu</li>
<li>Fri</li>
<li>Sat</li>
<li>Sun</li>
</ul>
</div>
<div id="calender_section_bot">
<ul>
<?php
$dayCount = 1;
for ($cb = 1; $cb <= $boxDisplay; $cb++) {
if (($cb >= $currentMonthFirstDay || $currentMonthFirstDay == 7) && $cb <= ($totalDaysOfMonthDisplay - 1)) {
// Current date
$currentDate = $dateYear.'-'.$dateMonth.'-'.$dayCount;
$eventNum = 0;
// Include db configuration file
// Get number of events based on the current date
$sql = "SELECT date_from, date_to FROM booking_2";
$result = $this->connect()->query($sql);
/*die(var_dump($result));*/
$eventNum = $result->num_rows;
if ($eventNum > 0) {
while ($row = $result->fetch_assoc()) {
$date_from = $row['date_from'];
$date_to = $row['date_to'];
$time_from = strtotime($date_from);
$time_fromm = idate('d', $time_from);
$time_to = strtotime($date_to);
$time_too = idate('d', $time_to);
}
$period = new DatePeriod(
new DateTime($date_from),
new DateInterval('P1D'),
new DateTime($date_to)
);
if ($time_from == $currentDate) {
/*echo '<li style="background-color:#FF3232 !important;" date="'.date("Y-m-d", strtotime($currentDate)).'" class="date_cell"><span>'.date("d", strtotime($currentDate)).'</span>'; */
foreach ($period as $key) {
echo '<li style="background-color:#FF3232 !important;"'.$key->format('Y-m-d');
}
} else {
echo '<li date="'.$currentDate.'" class="date_cell">';
}
}
// Date cell
echo '<span>';
echo $dayCount;
echo '</span>';
echo '</li>';
$dayCount++;
?>
<?php } else { ?>
<li><span> </span></li>
<?php } } ?>
</ul>
</div>
</div>
How do I make the dates that are pulled from data base gets marked up in a different colour? I have tried for loops and it works mostly but then again it ends up taking only the last row from database, I need the calendar to display all the taken dates not just the last one that is in the database