PHP obtains the number of weeks in a year, the start date and end date of a week, and the start date of a week. _ PHP Tutorial

PHP obtains the number of weeks of a year, the start date and end date of a week, and the start date of a week. PHP obtains the week, weekly start date, and end date of a year, and the week start date is recently followed by a project, one of the requirements is to use php to obtain the number of weeks of the year and the weekly start date. PHP gets the number of weeks of the year, the weekly start date and end date, and the number of weeks start date.

Recently, I took over a project. one of the requirements was to use php to obtain the weeks of the year, the start date of the week, and the contact date. I did not find the appropriate information on the Internet, so I made a copy of it myself. below I will use two methods to obtain the number of weeks of the year in PHP, as well as the start date and end date of the week.

Code 1:

<? Phpheader ("Content-type: text/html; charset = utf-8"); date_default_timezone_set ("Asia/Shanghai"); $ year = (int) $ _ GET ['Year']; $ week = (int) $ _ GET ['Week ']; $ weeks = date ("W", mktime (0, 0, 0, 12, 28, $ year); echo $ year. 'years in total '. $ weeks. 'week
'; If ($ week> $ weeks | $ week <= 0) {$ week = 1;} if ($ week <10) {$ week = '0 '. $ week;} $ timestamp ['start'] = strtotime ($ year. 'W '. $ week); $ timestamp ['end'] = strtotime ('+ 1 week-1 Day', $ timestamp ['start']); echo $ year. 'year '. $ week. 'week start timestamp :'. $ timestamp ['start'].'
'; Echo $ year. 'year'. $ week. 'week end timestamp:'. $ timestamp ['end'].'
'; Echo $ year. 'year '. $ week. 'week start date :'. date ("Y-m-d", $ timestamp ['start']).'
'; Echo $ year. 'year '. $ week. 'week end date :'. date ("Y-m-d", $ timestamp ['end']);?>

Code 2:

<?phpheader("Content-type:text/html;charset=utf-8");function getIsoWeeksInYear($year){ $date = new DateTime; $date->setISODate($year, 53); return ($date->format("W") === "53" ? 53 : 52);}function weekday($custom_date){ $week_start = date('d-m-Y', strtotime('this week monday', $custom_date)); $week_end = date('d-m-Y', strtotime('this week sunday', $custom_date)); $week_array[0] = $week_start; $week_array[1] = $week_end; return $week_array;}echo '
 Weeks in 2013
' . getIsoWeeksInYear(2013);$weekday = weekday(strtotime(date('d-m-Y', strtotime('5-8-2013'))));echo '
 10-8-2013';echo '
Start: ' . $weekday[0];echo '
End: ' . $weekday[1];?>

All of the above content will be helpful for you to learn how many weeks of the year, weekly start date, and end date for PHP.

Pipeline has recently taken over a project. one of the requirements is to use php to obtain the week of the year and the start date of the week...