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@ 2013-11-18T20:18:56Z

<?php
$ts = strtotime('2010-01-31 +1 month');
echo date('Y-m-d', $ts),"\n";

$dt = new \DateTime('2010-01-31');
$dt->add(new \DateInterval('P1M'));
echo $dt->format('Y-m-d'),"\n";

$ts = strtotime('2010-01-05 +1 month');
echo date('Y-m-d', $ts),"\n";

$dt = new \DateTime('2010-01-05');
$dt->add(new \DateInterval('P1M'));
echo $dt->format('Y-m-d'),"\n";

$orig = strtotime('2010-01-31');
$ts1 = strtotime('+1 month', $orig);
$ts2 = strtotime('last day of next month', $orig);
$ts = $ts1;
if ($ts1 > $ts2) {
	$ts = $ts2;
}
echo date('Y-m-d', $ts),"\n";

$orig = new \DateTime('2010-01-31');
$dt1 = clone $orig;
$dt1->add(new \DateInterval('P1M'));
$dt2 = clone $orig;
$dt2->modify('last day of next month');
$dt = $dt1;
if ($dt1 > $dt2) {
	$dt = $dt2;
}
echo $dt->format('Y-m-d'),"\n";

Output for git.master, git.master_jit, rfc.property-hooks: 2010-03-03 2010-03-03 2010-02-05 2010-02-05 2010-02-28 2010-02-28

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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