calendar.php

<?php
$has_event_class = 'has-event-false';

    $events = array(
        0 => array(
            'city' => 'Tbilisi',
            'start_date' => '2014-11-18 09:00',
            'end_date' => '2014-11-18 12:00',
            'name' => 'Meeting with Jesus'
        ),

        1 => array(
            'city' => 'Tbilisi',
            'start_date' => '2014-11-18 17:00',
            'end_date' => '2014-11-18 18:00',
            'name' => 'Meeting with Budda'
        ),

        2 => array(
            'city' => 'Tbilisi',
            'start_date' => '2014-11-19 13:00',
            'end_date' => '2014-11-19 16:00',
            'name' => 'Meeting with Apollo'
        ),

        3 => array(
            'city' => 'Batumi',
            'start_date' => '2014-11-20  13:00',
            'end_date' => '2014-11-20 18:00',
            'name' => 'Meeting with Krishna'
        ),

        4 => array(
            'city' => 'Batumi',
            'start_date' => '2014-11-21  15:00',
            'end_date' => '2014-11-21 18:00',
            'name' => 'Meeting with Zeus'
        ),
    );
?>

<div class="table-responsive">
    <table class="table">
        <tr>
            <?php
            if (1 == date('N')) { // N - Now
                $monday = time();
            } else {
                $monday = strtotime('last Monday');
            }
            ?>

            <?php foreach (range(0, 7) as $column): ?>

                <?php if ($column == 0): ?>
                    <?php print ""; ?>
                    <th class="hours-column"></th>
                <?php else: ?>
                    <th class="days-column">
                    <?php print t(date('l', $monday));
                    print " ";
                    print t(date('d/m', strtotime('+' . ($column - 1) . 'day')));
                    $monday = strtotime('tomorrow', $monday);
                    ?>
                <?php endif; ?>
                </th>
            <?php endforeach; ?>
        </tr>
        <?php
        //Set up the initial time - as per customer's request
        $hour_initial = "09:00";

        ?>

        <?php foreach (range(0, 9) as $hour): ?>
            <tr>
                <?php foreach (range(0, 7) as $column): ?>
                    <?php if ($column == 0): ?>
                        <td class="hours-cell-data">
                            <?php
                            $effectiveHour = strtotime("+" . $hour . " hours", strtotime($hour_initial));
                            print date("H:i", $effectiveHour);
                            ?>
                        </td>
                    <?php else: ?>
                        <?php
                        global $has_event_class;
                        ?>

                        <td>
                            <?php foreach ($events as $event): ?>
                                <?php
                                $start_date = strtotime($event['start_date']);
                                $end_date = strtotime($event['end_date']);
                                $interval_hours = abs(round(($end_date - $start_date) / 3600, 1)); //Event interval in hours rounded
                                ?>
                                <?php if (
                                    date('Y-m-d', strtotime('+' . ($column - 1) . 'day'))
                                    ==
                                    date('Y-m-d', strtotime($event['start_date']))
                                    &&
                                    (date('H:i', $start_date) == date('H:i', $effectiveHour))
                                ): ?>
                                    <?php
                                    $has_event_class = 'has-event-true';
                                    $row_span = $interval_hours;
                                    ?>
                                    <span class="hours-interval-span"> <?php print (date('H:i', $start_date)); ?>
                                        <?php print "-"; ?>
                                        <?php print (date('H:i', $end_date)); ?>
                                    </span>
                                    <span class="event-name-span">
                                        <?php print $event['name']; ?>
                                    </span>
                                <?php else: ?>
                                    <?php $has_event_class = 'has-event-false'; ?>
                                <?php endif; ?>
                            <?php endforeach; ?>
                        </td>

                    <?php endif; ?>
                <?php endforeach; ?>
            </tr>
        <?php endforeach; ?>

    </table>

</div>