class/pear/Calendar/docs/examples/14.php from mambax7/extcal

class/pear/Calendar/docs/examples/14.php
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<?php

/**
 * Description: same as 3.php, but using the PEAR::Date engine
 * Note: make sure PEAR::Date is a stable release!!!
 */
function getmicrotime()
{
    list($usec, $sec) = explode(' ', microtime());

    return (float)$usec + (float)$sec;
}

$start = getmicrotime();

// Switch to PEAR::Date engine
define('CALENDAR_ENGINE', 'PearDate');

if (!@require_once __DIR__ . '/Calendar/Calendar.php') {
    define('CALENDAR_ROOT', '../../');
}
require_once CALENDAR_ROOT . 'Month/Weekdays.php';
require_once CALENDAR_ROOT . 'Day.php';

// Initialize GET variables if not set
if (!isset($_GET['y'])) {
    $_GET['y'] = date('Y');
}
if (!isset($_GET['m'])) {
    $_GET['m'] = date('m');
}
if (!isset($_GET['d'])) {
    $_GET['d'] = date('d');
}

// Build the month
$month = new Calendar_Month_Weekdays($_GET['y'], $_GET['m']);

// Create an array of days which are "selected"
// Used for Week::build() below
$selectedDays = [
    new Calendar_Day($_GET['y'], $_GET['m'], $_GET['d']),
    new Calendar_Day($_GET['y'], 12, 25),
];

// Build the days in the month
$month->build($selectedDays);

// Construct strings for next/previous links
$PMonth = $month->prevMonth('object'); // Get previous month as object
$prev   = $_SERVER['SCRIPT_NAME'] . '?y=' . $PMonth->thisYear() . '&m=' . $PMonth->thisMonth() . '&d=' . $PMonth->thisDay();
$NMonth = $month->nextMonth('object');
$next   = $_SERVER['SCRIPT_NAME'] . '?y=' . $NMonth->thisYear() . '&m=' . $NMonth->thisMonth() . '&d=' . $NMonth->thisDay();

$thisDate = new Date($month->thisMonth('timestamp'));
?>
<!DOCTYPE html>
<html>
<head>
    <title> Calendar using PEAR::Date Engine </title>
    <style text="text/css">
        table {
            background-color: #c0c0c0;
        }

        caption {
            font-family: verdana, sans-serif;
            font-size: 12px;
            background-color: #ffffff;
        }

        .prevMonth {
            font-size: 10px;
            text-align: left;
        }

        .nextMonth {
            font-size: 10px;
            text-align: right;
        }

        th {
            font-family: verdana, sans-serif;
            font-size: 11px;
            color: #000080;
            text-align: right;
        }

        td {
            font-family: verdana, sans-serif;
            font-size: 11px;
            text-align: right;
        }

        .selected {
            background-color: #ffff00;
        }
    </style>
</head>

<body>

<h2>Calendar using PEAR::Date Engine</h2>
<table class="calendar">
    <caption>
        <?php echo $thisDate->format('%B %Y'); ?>
    </caption>
    <tr>
        <th>M</th>
        <th>T</th>
        <th>W</th>
        <th>T</th>
        <th>F</th>
        <th>S</th>
        <th>S</th>
    </tr>
    <?php
    while (false !== ($day = $month->fetch())) {
        // Build a link string for each day
        $link = $_SERVER['SCRIPT_NAME'] . '?y=' . $day->thisYear() . '&m=' . $day->thisMonth() . '&d=' . $day->thisDay();

        // isFirst() to find start of week
        if ($day->isFirst()) {
            echo "<tr>\n";
        }

        if ($day->isSelected()) {
            echo '<td class="selected">' . $day->thisDay() . '</td>' . "\n";
        } elseif ($day->isEmpty()) {
            echo '<td>&nbsp;</td>' . "\n";
        } else {
            echo '<td><a href="' . $link . '">' . $day->thisDay() . '</a></td>' . "\n";
        }

        // isLast() to find end of week
        if ($day->isLast()) {
            echo "</tr>\n";
        }
    }
    ?>
    <tr>
        <td>
            <a href="<?php echo $prev; ?>" class="prevMonth"><< </a>
        </td>
        <td colspan="5">&nbsp;</td>
        <td>
            <a href="<?php echo $next; ?>" class="nextMonth"> >></a>
        </td>
    </tr>
</table>
<?php
echo '<p><b>Took: ' . (getmicrotime() - $start) . ' seconds</b></p>';
?>
</body>
</html>