DateInterval::createFromDateString()

(PHP 5 >= 5.3.0, PHP 7)

Sets up a DateInterval from the relative parts of the string

说明

publicstaticDateInterval::createFromDateString(string $time): DateInterval

Uses the normal date parsers and sets up a DateInterval from the relative parts of the parsed string.

参数

$time

A date with relative parts. Specifically,therelative formatssupported by the parser used forstrtotime()andDateTimewill be used to construct the DateInterval.

范例

Parsing valid date intervals

<?php
// Each set of intervals is equal.
$i = new DateInterval('P1D');
$i = DateInterval::createFromDateString('1 day');
$i = new DateInterval('P2W');
$i = DateInterval::createFromDateString('2 weeks');
$i = new DateInterval('P3M');
$i = DateInterval::createFromDateString('3 months');
$i = new DateInterval('P4Y');
$i = DateInterval::createFromDateString('4 years');
$i = new DateInterval('P1Y1D');
$i = DateInterval::createFromDateString('1 year + 1 day');
$i = new DateInterval('P1DT12H');
$i = DateInterval::createFromDateString('1 day + 12 hours');
$i = new DateInterval('PT3600S');
$i = DateInterval::createFromDateString('3600 seconds');
?>

返回值

Returns a newDateIntervalinstance.

DateInterval::createFromDateString ( string $time )
When the manual says "Uses the normal date parsers" it means that this function cannot take $time = ISO8601 strings like "P7D". If you want to use those, you must use the constructor.