(PHP 7 >= 7.2.17/7.3.4, PHP 8)
DatePeriod::getRecurrences — 取得重複次數
此函式沒有參數。
明確地傳遞 $recurrences 給 DatePeriod 類別的建構子所設定的重複次數，否則為 null（空值）。
範例 #1 DatePeriod::getRecurrences() 的不同值
<?php
$start = new DateTime('2018-12-31 00:00:00');
$end = new DateTime('2021-12-31 00:00:00');
$interval = new DateInterval('P1M');
$recurrences = 5;
// 透過建構子明確設定重複次數
$period = new DatePeriod($start, $interval, $recurrences, DatePeriod::EXCLUDE_START_DATE);
echo $period->getRecurrences(), "\n";
$period = new DatePeriod($start, $interval, $recurrences);
echo $period->getRecurrences(), "\n";
$period = new DatePeriod($start, $interval, $recurrences, DatePeriod::INCLUDE_END_DATE);
echo $period->getRecurrences(), "\n\n";
// 建構子中未設定重複次數
$period = new DatePeriod($start, $interval, $end);
var_dump($period->getRecurrences());
$period = new DatePeriod($start, $interval, $end, DatePeriod::EXCLUDE_START_DATE);
var_dump($period->getRecurrences());
?>以上範例會輸出：