DateInterval::createFromDateString
(PHP 5 >= 5.3.0, PHP 7)
DateInterval::createFromDateString — Sets up a DateInterval from the relative parts of the string
说明
$time
)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, the relative formats supported by the parser used for strtotime() and DateTime will be used to construct the DateInterval.
范例
Example #1 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 new DateInterval instance.
用户评论:
[#1] msleman at boot dot dot dot com [2010-10-28 20:39:03]
Sample usage:
<?php
$interval = DateInterval::createFromDateString('1 month');
?>
[#2] Anonymous [2009-09-28 12:02:42]
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.