PHP homemade calendar_PHP tutorial-PHP Tutorial-php.cn

PHP homemade calendar_PHP tutorial

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Release： 2016-07-13 10:18:10

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PHP homemade calendar

1. Calculation data

1. New Calendar class

2. Initialize the data in the two drop-down boxes, year and month

3. Initialize the year and month to be searched

4. Calculate the data information of each day in the calendar, including css and number of days

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require_once 'calendar.php';

$util = new Calendar();

$years = array(2012, 2013, 2014, 2015, 2016);//Customized year selection

$months = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);//Array of months

//Get the year data of the post

if(empty($_POST['ddlYear'])) {

$year = date('Y');

}else {

$year = $_POST['ddlYear'];

}

//Get the monthly data of the post

if(empty($_POST['ddlMonth'])) {

$month = date('n');

}else {

$month = $_POST['ddlMonth'];

}

$calendar = $util->threshold($year, $month);//Get each boundary value

$caculate = $util->caculate($calendar);//Calculate the number of days and style of the calendar

$draws = $util->draw($caculate);//Draw the table and set the tr and td in the table

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2. HTML display

1. The background color of rest days is different, and the font color of days that are not the current search year and month is also different

2. Initialize the year and month drop-down boxes in the div, and select the year and month currently to be searched

3. The data has been calculated and which td belongs to which tr. You can just print out the table

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三、Calendar类

1、threshold方法，生成日历的各个边界值

　　1)计算这个月总天数

　　2)计算这个月第一天与最后一天，各是星期几

　　3)计算日历中的第一个日期与最后一个日期

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　　/**

* @deprecated Generate each boundary value of the calendar

* @param string $year

* @param string $month

* @return array

function threshold($year, $month) {

$firstDay = mktime(0, 0, 0, $month, 1, $year);

$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);

$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,

'firstDate' => $firstDate,

'lastDate' => $lastDate,

'year' => $year,

'month' => $month

);

}

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2. caculate method, calculate the number of days and style of the calendar

1) Calculate the number of days in the last month. If the first day of the month is not a Sunday, you need to calculate it based on the last day of the last month

2) Traverse the number of days in this month, and if it is a rest day, add a special css style

3) Calculate the number of days in the next month, divided into three situations, Sunday, Saturday and working days

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　/**

* @author Pwstrick

　* @param array $calendar Data calculated by threshold method

* @deprecated Calculate the number of days and style of the calendar

function caculate($calendar) {

$days = $calendar['days'];

$firstDayOfWeek = $calendar['firstDayOfWeek'];//The first day of the week of this month

$lastDayOfWeek = $calendar['lastDayOfWeek'];//The week of the last day of this month

$lastMonthOfLastDay = $calendar['lastMonthOfLastDay'];//The last day of the previous month

$year = $calendar['year'];

$month = $calendar['month'];

$dates = array();

if($firstDayOfWeek != 7) {

$lastDays = array();

$current = $lastMonthOfLastDay;//The last day of the previous month

for ($i = 0; $i < $firstDayOfWeek; $i++) {

array_push($lastDays, $current);//Add the number of days in the previous month

$current--;

}

$lastDays = array_reverse($lastDays);//Reverse order

foreach ($lastDays as $index => $day) {

array_push($dates, array('day' => $day, 'tdclass' => ($index ==0 ?'rest':''), 'pclass' => 'outter') );

}

//Calendar information for this month

for ($i = 1; $i <= $days; $i++) {

$isRest = $this->_checkIsRest($year, $month, $i);

//Determine whether it is a rest day

array_push($dates, array('day' => $i, 'tdclass' => ($isRest ?'rest':''), 'pclass' => ''));

}

//Calendar information for next month

if($lastDayOfWeek == 7) {//The last day is Sunday

$length = 6;

}

elseif($lastDayOfWeek == 6) {//The last day is Saturday

$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;

}

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3. Draw method, draw the table, set tr and td in the table

1) The data will be displayed using table tags, so here we need to arrange the td under each tr

　2)$index % 7 == 0 Calculate the first column of each row of the table

　3)$index % 7 == 6 || $index == ($length-1) Calculate the last column of each row, or the last data of $caculate

　4) Add the middle row to $tr, which is the array of each row

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　/**

* @author Pwstrick

* @param array $caculate Data calculated by the caculate method

* @deprecated Draw a table and set tr and td in the table

function draw($caculate) {

$tr = array();

$length = count($caculate);

$result = array();

foreach ($caculate as $index => $date) {

if($index % 7 == 0) {//First column

$tr = array($date);

}elseif($index % 7 == 6 || $index == ($length-1)) {

array_push($tr, $date);

array_push($result, $tr);//Add to the returned data

$tr = array();//Clear the array list

}else {

array_push($tr, $date);

}

return $result;

}