303 lines
8.5 KiB
PHP
303 lines
8.5 KiB
PHP
<?php
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class Calendar
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{
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public $ical;
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private $categories = [];
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public static function printCalendar($content) : string {
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// Der zu ersetzende String
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$original_string = '{{calendar}}';
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if (str_contains($content,$original_string)) {
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wp_enqueue_style('bdp_calendar_css', BDP_LV_PLUGIN_URL . '/modules/calendar/assets/calendar.css');
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wp_enqueue_script( 'loadCalendar', BDP_LV_PLUGIN_URL . '/modules/calendar/assets/ajaxscript.js');
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$calendar = new Calendar();
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// Der Ersatzstring
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$replacement_string = $calendar->show();
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// Ersetze den Originalstring durch den Ersatzstring im Seiteninhalt
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$content = str_replace( $original_string, $replacement_string, $content );
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}
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return $content;
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}
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/**
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* Constructor
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*/
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public function __construct()
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{
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$categories = get_option('bdp_calendar_categories', null);
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if (null !== $categories) {
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$categories = json_decode($categories, true);
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} else {
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$categories = [
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'yellow' => 'Meute',
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'blue' => 'Sippe',
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'red' => 'Runde',
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'green' => 'StaFü',
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'fuchsia' => '',
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'orange' => ''
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];
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}
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foreach ($categories as $color => $keyname) {
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$this->categories[$keyname] = $color;
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}
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$calendarUrl = get_option('bdp_calendar_source_url', null);
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if (null === '') {
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return;
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}
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$this->ical = new \ICal('', array(
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'defaultSpan' => 2, // Default value
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'defaultTimeZone' => '',
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'defaultWeekStart' => 'MO', // Default value
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'disableCharacterReplacement' => false, // Default value
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'filterDaysAfter' => null, // Default value
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'filterDaysBefore' => null, // Default value
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'httpUserAgent' => null, // Default value
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'skipRecurrence' => false, // Default value
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));
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$this->ical->initUrl($calendarUrl);
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$this->ical->events();
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$this->naviHref = htmlentities($_SERVER['PHP_SELF']);
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}
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/********************* PROPERTY ********************/
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private $dayLabels = array("Mon", "Die", "Mit", "Don", "Fre", "Sam", "Son");
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private $monthLabels = ['', 'Januar', 'Februar', 'März', 'April', 'Mai', 'Juni', 'Juli', 'August', 'September', 'Oktober', 'November', 'Dezember'];
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private $currentYear = 0;
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private $currentMonth = 0;
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private $currentDay = 0;
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private $currentDate = null;
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private $daysInMonth = 0;
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private $naviHref = null;
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/********************* PUBLIC **********************/
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/**
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* print out the calendar
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*/
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public function show()
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{
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$year = null;
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$month = null;
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if (null == $year && isset($_GET['year'])) {
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$year = $_GET['year'];
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} else if (null == $year) {
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$year = date("Y", time());
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}
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if (null == $month && isset($_GET['month'])) {
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$month = $_GET['month'];
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} else if (null == $month) {
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$month = date("m", time());
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}
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$this->currentYear = $year;
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$this->currentMonth = $month;
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$this->daysInMonth = $this->_daysInMonth($month, $year);
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$content = ' <div id="calendarContainer"><div id="calendar">' .
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'<div class="box">' .
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$this->_createNavi() .
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'</div>' .
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'<div class="box-content">' .
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'<table style=" border-collapse: collapse; border-spacing: 0; table-layout: fixed;width: 100%;">
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<tr>' . $this->_createLabels() . '</tr>';
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$weeksInMonth = $this->_weeksInMonth($month, $year);
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// Create weeks in a month
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for ($i = 0; $i < $weeksInMonth; $i++) {
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//Create days in a week
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for ($j = 1; $j <= 7; $j++) {
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if ($j % 7 == 1) {
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$content .= '</tr><tr class="bdp_cal_day">';
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}
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$content .= $this->_showDay($i * 7 + $j);
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}
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}
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$content .= '</table></div>';
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return $content;
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}
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private function getCssClass($category)
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{
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$cssClass = 'bdp_cal_event_' . ($this->categories[$category] ?? 'grey');
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return $cssClass;
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}
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private function getEvent($date)
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{
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$eventString = '<ul>';
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#echo '<pre>';
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foreach ($this->ical->filterByDate($date) as $curEvent) {
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$time = $curEvent->getEventTime() ?? 'Ganztags';
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#print_r($curEvent);
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$eventString .= '<li class="' . $this->getCssClass($curEvent->category) . '">' .
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$time . ':<br />' .
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$curEvent->summary . '</li>';
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}
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return $eventString;
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}
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/********************* PRIVATE **********************/
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/**
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* create the li element for ul
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*/
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private function _showDay($cellNumber)
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{
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if ($this->currentDay == 0) {
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$firstDayOfTheWeek = date('N', strtotime($this->currentYear . '-' . $this->currentMonth . '-01'));
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if (intval($cellNumber) == intval($firstDayOfTheWeek)) {
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$this->currentDay = 1;
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}
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}
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if (($this->currentDay != 0) && ($this->currentDay <= $this->daysInMonth)) {
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$date =
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str_pad($this->currentDay, 2, '0', STR_PAD_LEFT) . '.' .
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str_pad($this->currentMonth, 2, '0', STR_PAD_LEFT) . '.' .
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$this->currentYear;
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$this->currentDate = date('Y-m-d', strtotime($this->currentYear . '-' . $this->currentMonth . '-' . ($this->currentDay)));
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$cellContent = '<span class="bdp_cal_day">' . $this->currentDay . '</span>' . $this->getEvent($date);
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$this->currentDay++;
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} else {
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$this->currentDate = null;
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$cellContent = null;
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}
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return '<td style="padding-top: 5px; border-color: #a0a0a0; height: 120px; border-style: solid; border-width:1px; vertical-align: top;">' . $cellContent . '</td>';
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}
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/**
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* create navigation
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*/
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private function _createNavi()
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{
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$nextMonth = $this->currentMonth == 12 ? 1 : intval($this->currentMonth) + 1;
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$nextYear = $this->currentMonth == 12 ? intval($this->currentYear) + 1 : $this->currentYear;
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$preMonth = $this->currentMonth == 1 ? 12 : intval($this->currentMonth) - 1;
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$preYear = $this->currentMonth == 1 ? intval($this->currentYear) - 1 : $this->currentYear;
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return
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'<div class="header">' .
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'<a class="prev" href="javascript:void(0);" onclick="loadCalendar(' . $preMonth . ',' . $preYear . ');"><< Vorheriger Monat</a>' .
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'<span class="title">' . $this->monthLabels[(int)date('m', strtotime($this->currentYear . '-' . $this->currentMonth . '-1'))] . ' ' . date('Y', strtotime($this->currentYear . '-' . $this->currentMonth . '-1')) . '</span>' .
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'<a class="next" href="javascript:void(0);" onclick="loadCalendar(' . $nextMonth . ',' . $nextYear . ');">Nächster Monat >></a>' .
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'</div>';
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}
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/**
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* create calendar week labels
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*/
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private function _createLabels()
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{
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$content = '';
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foreach ($this->dayLabels as $index => $label) {
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$content .= '<td style="max-width: 14.287%;">' . $label . '</td>';
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}
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return $content;
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}
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/**
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* calculate number of weeks in a particular month
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*/
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private function _weeksInMonth($month = null, $year = null)
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{
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if (null == ($year)) {
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$year = date("Y", time());
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}
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if (null == ($month)) {
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$month = date("m", time());
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}
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// find number of days in this month
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$daysInMonths = $this->_daysInMonth($month, $year);
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$numOfweeks = ($daysInMonths % 7 == 0 ? 0 : 1) + intval($daysInMonths / 7);
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$monthEndingDay = date('N', strtotime($year . '-' . $month . '-' . $daysInMonths));
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$monthStartDay = date('N', strtotime($year . '-' . $month . '-01'));
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if ($monthEndingDay < $monthStartDay) {
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$numOfweeks++;
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}
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return $numOfweeks;
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}
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/**
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* calculate number of days in a particular month
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*/
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private function _daysInMonth($month = null, $year = null)
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{
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if (null == ($year))
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$year = date("Y", time());
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if (null == ($month))
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$month = date("m", time());
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return date('t', strtotime($year . '-' . $month . '-01'));
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}
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}
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