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@ 2017-07-25T20:17:20Z

<?php

$start = new DateTime('2012-07-01');
$interval = new DateInterval('P7D');
$end = new DateTime('2012-07-31');
$recurrences = 4;
$iso = 'R4/2012-07-01T00:00:00Z/P7D';

// All of these periods are equivalent.
$p = new DatePeriod($start, $interval, $recurrences);
//$p = new DatePeriod($start, $interval, $end);
//$p = new DatePeriod($iso);

foreach ($p as $d) {
    echo $d->format('d ');
}

echo "\n";

$p = \PHP_VERSION_ID >= 70107
            ? clone $p
            : new \DatePeriod(
                $p->getStartDate(),
                new \DateInterval($p->getDateInterval()->format('P%yY%mM%dDT%hH%iM%sS')),
                $p->getEndDate() ?: $p->recurrences,
                (int) $p->include_start_date
            )
        ;

foreach ($p as $d) {
    echo $d->format('d ');
}

Output for git.master, git.master_jit, rfc.property-hooks: 01 08 15 22 29 01 08 15 22 29

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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