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<?php function getDates(DateTime $date) { if ($date->format('d') == 20) { $nextMonth = clone $date; $nextMonth->modify('-1 day'); $nextMonth->modify('+1 month'); return [ 'start' => $date, 'end' => $nextMonth, ]; } else if ($date->format('d') == 19) { $lastMonth = clone $date; $lastMonth->modify('+1 day'); $lastMonth->modify('-1 month'); return [ 'start' => $lastMonth, 'end' => $date, ]; } } $date = new DateTime('2017-09-20'); var_dump(getDates($date)); $date = new DateTime('2017-09-19'); var_dump(getDates($date));
Output for 7.0.0 - 7.0.23, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(2) { ["start"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2017-09-20 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } ["end"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2017-10-19 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } } array(2) { ["start"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2017-08-20 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } ["end"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2017-09-19 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(2) { ["start"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2017-09-20 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } ["end"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2017-10-19 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } } array(2) { ["start"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2017-08-20 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } ["end"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2017-09-19 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } }
Output for 7.3.32 - 7.3.33, 8.0.13
array(2) { ["start"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2017-09-20 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2017-10-19 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } array(2) { ["start"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2017-08-20 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2017-09-19 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } }

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