DatePeriod::getRecurrences

(PHP 7 >= 7.2.17/7.3.4, PHP 8)

DatePeriod::getRecurrencesGets the number of recurrences

说明

面向对象风格

public DatePeriod::getRecurrences(): ?int

Get the number of recurrences.

参数

此函数没有参数。

返回值

The number of recurrences as set by explicitly passing the $recurrences to the contructor of the DatePeriod class, or null otherwise.

示例

示例 #1 Different values for DatePeriod::getRecurrences()

<?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;

// recurrences explicitly set through the constructor
$period = new DatePeriod($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";

// recurrences not set in the constructor
$period = new DatePeriod($start, $interval, $end);
var_dump($period->getRecurrences());

$period = new DatePeriod($start, $interval, $end, DatePeriod::EXCLUDE_START_DATE);
var_dump($period->getRecurrences());
?>

以上示例会输出:


5
5
5

NULL
NULL

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