利用PHP怎么計(jì)算一年有幾周?很多新手對(duì)此不是很清楚,為了幫助大家解決這個(gè)難題,下面小編將為大家詳細(xì)講解,有這方面需求的人可以來(lái)學(xué)習(xí)下,希望你能有所收獲。

下面通過(guò)兩種方式實(shí)現(xiàn)PHP獲取一年有幾周以及每周開始日期和結(jié)束日期
代碼一:
<?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 . '周開始時(shí)間戳:' . $timestamp['start'] . '<br />';
echo $year . '年第' . $week . '周結(jié)束時(shí)間戳:' . $timestamp['end'] . '<br />';
echo $year . '年第' . $week . '周開始日期:' . date("Y-m-d", $timestamp['start']) . '<br />';
echo $year . '年第' . $week . '周結(jié)束日期:' . date("Y-m-d", $timestamp['end']);
?>代碼二:
<?php
header("Content-type:text/html;charset=utf-8");
function getIsoWeeksInYear($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];
?>看完上述內(nèi)容是否對(duì)您有幫助呢?如果還想對(duì)相關(guān)知識(shí)有進(jìn)一步的了解或閱讀更多相關(guān)文章,請(qǐng)關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道,感謝您對(duì)創(chuàng)新互聯(lián)網(wǎng)站建設(shè)公司,的支持。
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