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<?php $start = new DateTimeImmutable('2016-04-20 00:37:15'); $end = $start->modify('+7 days'); $diff = $end->diff($start); echo $diff->format('%d days') . PHP_EOL; var_dump($start, $end, $diff);
Output for git.master, git.master_jit, rfc.property-hooks
7 days object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2016-04-20 00:37:15.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTimeImmutable)#2 (3) { ["date"]=> string(26) "2016-04-27 00:37:15.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateInterval)#3 (10) { ["y"]=> int(0) ["m"]=> int(0) ["d"]=> int(7) ["h"]=> int(0) ["i"]=> int(0) ["s"]=> int(0) ["f"]=> float(0) ["invert"]=> int(1) ["days"]=> int(7) ["from_string"]=> bool(false) }

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