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<?php $startOfWeek = '16-07-2017'; $endOfWeek = new DateTime($startOfWeek); var_dump($endOfWeek); $endOfWeekString = $endOfWeek->modify('+5 day')->format('d-m-Y'); function firstDayOfWeek($date) { $day = DateTime::createFromFormat('d-m-Y', $date); $day->setISODate((int)$day->format('o'), (int)$day->format('W'), 1); return $day->format('d-m-Y'); } var_dump(firstDayOfWeek($startOfWeek)); echo $endOfWeekString;
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.25, 7.2.0 - 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
object(DateTime)#1 (3) { ["date"]=> string(26) "2017-07-16 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } string(10) "10-07-2017" 21-07-2017
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 object(DateTime)#1 (3) { ["date"]=> string(26) "2017-07-16 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } string(10) "10-07-2017" 21-07-2017
Output for 7.3.32 - 7.3.33, 8.0.13
object(DateTime)#1 (3) { ["date"]=> string(26) "2017-07-16 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } string(10) "10-07-2017" 21-07-2017
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