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run code in 150+ php & hhvm versions
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<?php //echo strtotime('monday this week', time()); $thisWeek = new DateTime('today'); $dayOfWeek = ((int)$thisWeek->format('N'))-1; $thisWeek->modify("-$dayOfWeek days"); var_dump($thisWeek->format('Y-m-d H:i:s'));
based on nHZkY
Output for 5.2.0 - 5.3.28, 5.4.0 - 5.4.31, 5.6.28, 7.0.14 - 7.1.0
string(19) "2014-08-18 00:00:00"
Output for 5.6.21, 7.0.6
string(19) "2016-05-02 00:00:00"
Output for 5.5.30, 5.6.14 - 5.6.15, 7.0.5
string(19) "2016-03-28 00:00:00"
Output for 5.5.33, 5.6.19, 7.0.4
string(19) "2016-03-07 00:00:00"
Output for 5.5.31 - 5.5.32, 5.6.17 - 5.6.18, 7.0.3
string(19) "2016-03-14 00:00:00"
Output for 5.6.16, 7.0.0 - 7.0.2
string(19) "2016-03-21 00:00:00"
Output for 5.5.34, 5.6.20
string(19) "2016-04-04 00:00:00"
Output for 5.5.29, 5.6.13
string(19) "2016-04-11 00:00:00"
Output for 5.5.27 - 5.5.28, 5.6.11 - 5.6.12
string(19) "2016-04-18 00:00:00"
Output for 5.5.25 - 5.5.26, 5.6.8 - 5.6.10
string(19) "2016-04-25 00:00:00"
Output for 5.5.35
string(19) "2016-05-16 00:00:00"
Output for 5.5.24
string(19) "2016-05-23 00:00:00"
Output for 5.4.39 - 5.4.45
string(19) "2015-09-21 00:00:00"
Output for 5.4.34 - 5.4.38
string(19) "2015-03-02 00:00:00"
Output for 5.3.29, 5.4.32
string(19) "2014-08-25 00:00:00"
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/r91rk on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/r91rk on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/r91rk on line 5