Adapting My Calendar to work for dates across 2 months - php

Question

I am working on a calendar, using my own code, I can current only get dates to show as booked if they are within the same month.
How would I get things to work if dates go across more than a single month?
These are the main variables that setup the calendar (which come before my while loop):
//Labels
$dayLabels = array("Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday");
$dayMiniLabels = array("Mon","Tue","Wed","Thu","Fri","Sat","Sun");
$monthLables = array("January","February","March","April","May","June","July","August","September","October","November","December");
//max values
$maxDays = 7;
$maxMonths = 12;
//stats
$forceMonth = $_GET['m'];
$forceYear = $_GET['y'];
$todayDate = date("d-m-Y");
$todayDate = date("d-m-Y", strtotime($todayDate));
$explodeToday = explode("-", $todayDate);
$currentDay = $explodeToday[0];
if(isset($forceMonth)) {
$currentMonth = $forceMonth;
} else {
$currentMonth = $explodeToday[1];
};
if(isset($forceYear)) {
$currentYear = $forceYear;
} else {
$currentYear = $explodeToday[2];
};
$currentDate = strtotime("01-$currentMonth-$currentYear");
$prevMonth = sprintf("%02d", $currentMonth - 1);
$nextMonth = sprintf("%02d", $currentMonth + 1);
$prevYear = sprintf("%02d", $currentYear - 1);
$nextYear = sprintf("%02d", $currentYear + 1);
$daysInMonth = cal_days_in_month(CAL_GREGORIAN, $currentMonth, $currentYear);
$firstDayofMonth = date("D", $currentDate);
$firstDayofMonth = array_search($firstDayofMonth, $dayMiniLabels);
$firstDayofMonth = $firstDayofMonth;
//database values
$bookedStart = array();
$bookedEnd = array();
$bookedUser = array();
if($getBookings = $con->prepare("SELECT userID,bookingStart,bookingEnd FROM bookings WHERE machineID=?")) {
$getBookings->bind_param("i", $_GET['id']);
if($getBookings->execute()) {
$getBookings->bind_result($bookingUserID,$bookingStart,$bookingEnd);
while($getBookings->fetch()) {
array_push($bookedStart, $bookingStart);
array_push($bookedEnd, $bookingEnd);
array_push($bookedUser, $bookingUserID);
};
};
};
$getBookings->close();
//counters
$daysIntoMonth = 0;
$dayCounter = 0;
$startMonth = 0;
This is the current display code for the calendar (the stuff that prints the calendar):
<table class="full grid dayLabels">
<tr>
<?php
foreach($dayLabels as $day) {
echo '<td class="day"><p>' .$day. '</p></td>';
};
?>
</tr>
</table>
<table id="calendar" class="full grid calendar">
<?php
while($daysIntoMonth < $daysInMonth) {
//days into month
$daysIntoMonth++;
$temp_intoMonth = sprintf("%02d", $daysIntoMonth);
$daysIntoMonth = $temp_intoMonth;
//days into week
$dayCounter++;
$temp_dayCounter = sprintf("%02d", $dayCounter);
$dayCounter = $temp_dayCounter;
//current calendar date
$calDate = date('d-m-Y', strtotime($daysIntoMonth. '-' .$currentMonth. '-' .$currentYear));
$calTime = strtotime($calDate);
$todaysNumber = date('w', $timeCal);
if($dayCounter == 1) {
echo '<tr>';
};
if($firstDayofMonth != 7) {
while($startMonth < $firstDayofMonth) {
echo '<td class="padding"></td>';
$startMonth++;
$dayCounter++;
$temp_dayCounter = sprintf("%02d", $dayCounter);
$dayCounter = $temp_dayCounter;
};
};
if($startKey = in_array($calDate, $bookedStart, true)) {
$booked = true;
echo '
<td class="booked">
<p class="date">' .$daysIntoMonth. '</p>
</td>
';
} else if(in_array($calDate, $bookedEnd, true)) {
$booked = false;
echo '
<td class="booked">
<p class="date">' .$daysIntoMonth. '</p>
</td>
';
} else if($booked == true) {
echo '
<td class="booked">
<p class="date">' .$daysIntoMonth. '</p>
</td>
';
} else {
echo '
<td>
<p class="date">' .$daysIntoMonth. '</p>
</td>
';
};
if($dayCounter == $maxDays) {
echo '</tr>';
$dayCounter = 0;
};
};
?>
</table>
I current look for a start date to set the variable booked variable as true until it comes across an end date. This means that the calendar will only work for dates that are contained within the same month...
How would I go about making the dates work across months?

Answer 1

I ended up completely reworking my calendar system to get this to work the way how I wanted it to:
//Labels
$dayLabels = array("Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday");
$dayMiniLabels = array("Mon","Tue","Wed","Thu","Fri","Sat","Sun");
$monthLables = array("January","February","March","April","May","June","July","August","September","October","November","December");
$forceMonth = $_GET['m'];
$forceYear = $_GET['y'];
$currentDate = date("Y-m-d");
$explodeDate = explode("-", $currentDate);
//Currents
if(isset($forceMonth)) {
if(strlen($forceMonth) == 1) {
$forceMonth = sprintf("%02d", $forceMonth);
};
$currentMonth = $forceMonth;
} else {
$currentMonth = date("m");
};
if(isset($forceYear)) {
if(strlen($forceYear) == 2) {
$dt = DateTime::createFromFormat('y', $forceYear);
$forceYear = $dt->format('Y');
};
$currentYear = $forceYear;
} else {
$currentYear = date("Y");
};
//variables
$monthStart = date($currentYear. '-' .$currentMonth. '-01');
$monthEnd = date($currentYear. '-' .$currentMonth. '-t');
$prevMonth = sprintf("%02d", $currentMonth - 1);
$nextMonth = sprintf("%02d", $currentMonth + 1);
$prevYear = sprintf("%02d", $currentYear - 1);
$nextYear = sprintf("%02d", $currentYear + 1);
$daysInMonth = cal_days_in_month(CAL_GREGORIAN, $currentMonth, $currentYear);
$firstDayofMonth = date("D", strtotime("01-$currentMonth-$currentYear"));
$firstDayofMonth = array_search($firstDayofMonth, $dayMiniLabels);
$firstDayofMonth = $firstDayofMonth;
if($firstDayofMonth == 0) {
$firstDayofMonth = 7;
};
$bookings = array();
$s = new DateTime($monthStart);
$e = new DateTime("$monthEnd + 1 days");
$oneday = new DateInterval('P1D');
$dp = new DatePeriod($s, $oneday, $e);
foreach ($dp as $d) {
$bookings[$d->format('Y-m-d')] = '';
};
$sql = "SELECT userID
, bookingStart
, bookingEnd
FROM bookings
WHERE machineID = ?
AND bookingStart < ?
AND bookingEnd > ?";
$getBookings = $con->prepare($sql);
$getBookings->bind_param('iss', $_GET['id'], $monthEnd, $monthStart);
$getBookings->execute();
$getBookings->bind_result($uid, $bstart, $bend);
while ($getBookings->fetch()) {
$s = new DateTime(max($bstart, $monthStart));
$e = new DateTime(min($bend, $monthEnd));
$e->modify('+1 day');
$dp = new DatePeriod($s, $oneday, $e);
foreach ($dp as $d) {
$bookings[$d->format('Y-m-d')] = $uid;
};
};
//counters
$dayCount = 0;
$startMonth = 0;
$calDate = 0;
<table class="full grid dayLabels">
<tr>
<?php
foreach($dayLabels as $day) {
echo '<td class="day"><p>' .$day. '</p></td>';
};
?>
</tr>
</table>
<table id="calendar" class="full grid calendar">
<?php
foreach($bookings as $date) {
$dayCount++;
$calDate++;
$calDate = sprintf("%02d", $calDate);
if($dayCount == 1) {
echo '<tr>';
};
if($firstDayofMonth != 7) {
while($startMonth < $firstDayofMonth) {
echo '<td class="padding"></td>';
$startMonth++;
$dayCount++;
$temp_dayCount = sprintf("%02d", $dayCount);
$dayCount = $temp_dayCount;
};
};
if($date != "") {
if($getUserName = $con->prepare("SELECT userFirst,userLast,userEmail FROM users WHERE userID=?")) {
$getUserName->bind_param("i", $date);
$getUserName->execute();
$getUserName->bind_result($userFirst,$userLast,$userEmail);
while($getUserName->fetch()) {
echo '
<td class="booked">
<p>' .$calDate. '</p>
<p>' .$userFirst. ' ' .$userLast. '</p>
</td>
';
};
};
$getUserName->close();
} else {
echo '
<td>
<p>' .$calDate. '</p>
';
if(isset($_SESSION['userID']) && $_SESSION['userPerms'] > 0) {
echo '
<a class="bookNow"></a>
<form class="book" method="post" action="./action.php?a=book">
<input name="userID" type="hidden" value="' .$_SESSION['userID']. '" required />
<input name="machineID" type="hidden" value="' .$id. '" required />
<div class="options">
<a class="fa fa-close"></a>
</div>
<p>Start Date</p>
<input name="startDate" type="text" value="' .$calDate. '-' .$currentMonth. '-' .$currentYear. '" autofocus required />
<p>End Date</p>
<input name="endDate" type="text" value="' .$calDate. '-' .$currentMonth. '-' .$currentYear. '" required />
<p>Project Number</p>
<input name="projectNumber" type="number" placeholder="Project Number" required />
<button class="confirm" type="submit">Submit</button>
</form>
';
};
echo '
</td>
';
};
if($dayCount == 7) {
echo '</tr>';
$dayCount = 0;
};
};
?>
</table>