PHP获取一年有几周以及每周开始日期和结束日期

前端技术 2023/09/04 PHP

最近接了一个项目，其中有一需求是用php获取一年有几周以及每周开始日期和接触日期。在网上找些资料没有合适的，于是自己做了一份，下面通过两种方式实现PHP获取一年有几周以及每周开始日期和结束日期

代码一：

<?php
header(\"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 . \'年一共有\' . $weeks . \'周<br />\';
if ($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 . \'年第\' . $week . \'周开始时间戳：\' . $timestamp[\'start\'] . \'<br />\';
echo $year . \'年第\' . $week . \'周结束时间戳：\' . $timestamp[\'end\'] . \'<br />\';
echo $year . \'年第\' . $week . \'周开始日期：\' . date(\"Y-m-d\", $timestamp[\'start\']) . \'<br />\';
echo $year . \'年第\' . $week . \'周结束日期：\' . date(\"Y-m-d\", $timestamp[\'end\']);
?>

代码二：

<?php
header(\"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 \'<br> Weeks in 2013<br>\' . getIsoWeeksInYear(2013);
$weekday = weekday(strtotime(date(\'d-m-Y\', strtotime(\'5-8-2013\'))));
echo \'<br> 10-8-2013\';
echo \'<br>Start: \' . $weekday[0];
echo \'<br>End: \' . $weekday[1];
?>

以上本文的全部内容，希望对大家学习PHP获取一年有几周以及每周开始日期和结束日期，有所帮助。

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