We explained earlier the
threshold method, which generates each boundary value of the calendar
caculate method, calculates the number of days and style of the calendar
draw method, draws the table, and sets tr and td in the table
In this section we encapsulate them into a Calendar class and then reference it on the front-end page. You can call this class when doing other similar projects in the future.
This class file is created with the name calendar.php.
<?php
class Calendar {
/*
* @deprecated 生成日历的各个边界值
* @param string $year
* @param string $month
* @return array
*/
function threshold($year, $month) {
$firstDay = mktime(0, 0, 0, $month, 1, $year); //mktime() 函数返回日期的 UNIX 时间戳。
$lastDay = strtotime('+1 month -1 day', $firstDay);
//取得天数
$days = date("t", $firstDay);
//取得第一天是星期几
$firstDayOfWeek = date("N", $firstDay);
//获得最后一天是星期几
$lastDayOfWeek = date('N', $lastDay);
//上一个月最后一天
$lastMonthDate = strtotime('-1 day', $firstDay); //strtotime() 函数将任何英文文本的日期或时间描述解析为 Unix 时间戳
$lastMonthOfLastDay = date('d', $lastMonthDate);
//下一个月第一天
$nextMonthDate = strtotime('+1 day', $lastDay);
$nextMonthOfFirstDay = strtotime('+1 day', $lastDay);
//日历的第一个日期
if($firstDayOfWeek == 7) {
$firstDate = $firstDay;
}else {
$firstDate = strtotime('-' . $firstDayOfWeek . ' day', $firstDay);
}
//日历的最后一个日期
if($lastDayOfWeek == 6) {
$lastDate = $lastDay;
}elseif($lastDayOfWeek == 7) {
$lastDate = strtotime('+6 day', $lastDay);
}else {
$lastDate = strtotime('+' . (6 - $lastDayOfWeek) . ' day', $lastDay);
}
return array(
'days' => $days,
'firstDayOfWeek' => $firstDayOfWeek,
'lastDayOfWeek' => $lastDayOfWeek,
'lastMonthOfLastDay' => $lastMonthOfLastDay,
'firstDate' => $firstDate,
'lastDate' => $lastDate,
'year' => $year,
'month' => $month
);
}
/*
* @author Pwstrick
* @param array $calendar 通过threshold方法计算后的数据
* @deprecated 计算日历的天数与样式
*/
function caculate($calendar) {
$days = $calendar['days'];
$firstDayOfWeek = $calendar['firstDayOfWeek'];//本月第一天的星期
$lastDayOfWeek = $calendar['lastDayOfWeek'];//本月最后一天的星期
$lastMonthOfLastDay = $calendar['lastMonthOfLastDay'];//上个月的最后一天
$year = $calendar['year'];
$month = $calendar['month'];
$dates = array();
if($firstDayOfWeek != 7) {
$lastDays = array();
$current = $lastMonthOfLastDay;//上个月的最后一天
for ($i = 0; $i < $firstDayOfWeek; $i++) {
array_push($lastDays, $current);//添加上一个月的日期天数
$current--;
}
$lastDays = array_reverse($lastDays);//反序
foreach ($lastDays as $index => $day) {
array_push($dates, array('day' => $day, 'tdclass' => ($index ==0 ?'rest':''), 'pclass' => 'outter'));
}
}
//本月日历信息
for ($i = 1; $i <= $days; $i++) {
$isRest = $this->_checkIsRest($year, $month, $i);
//判断是否是休息天
array_push($dates, array('day' => $i, 'tdclass' => ($isRest ?'rest':''), 'pclass' => ''));
}
//下月日历信息
if($lastDayOfWeek == 7) {//最后一天是星期日
$length = 6;
}
elseif($lastDayOfWeek == 6) {//最后一天是星期六
$length = 0;
}else {
$length = 6 - $lastDayOfWeek;
}
for ($i = 1; $i <= $length; $i++) {
array_push($dates, array('day' => $i, 'tdclass' => ($i==$length ?'rest':''), 'pclass' => 'outter'));
}
return $dates;
}
/*
* @author Pwstrick
* @deprecated 判断是否是休息天
*/
private function _checkIsRest($year, $month, $day) {
$date = mktime(0, 0, 0, $month, $day, $year);
$week = date("N", $date);
return $week == 7 || $week == 6;
}
/*
* @author Pwstrick
* @param array $caculate 通过caculate方法计算后的数据
* @deprecated 画表格，设置table中的tr与td
*/
function draw($caculate) {
$tr = array();
$length = count($caculate);
$result = array();
foreach ($caculate as $index => $date) {
if($index % 7 == 0) {//第一列
$tr = array($date);
}elseif($index % 7 == 6 || $index == ($length-1)) {
array_push($tr, $date);
array_push($result, $tr);//添加到返回的数据中
$tr = array();//清空数组列表
}else {
array_push($tr, $date);
}
}
return $result;
}
}
?>