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<?php $a = new \DateTime('now'); $a->sub(new DateInterval(sprintf('P%dD', 7 + $a->format('w')))); echo $a->format('Y-m-d');
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.32, 5.6.28, 7.0.14 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2014-09-28
Output for 5.6.21, 7.0.6
2016-04-24
Output for 7.0.5
2016-03-27
Output for 5.5.33, 5.6.19, 7.0.4
2016-02-28
Output for 5.5.32, 5.6.17 - 5.6.18, 7.0.3
2016-03-06
Output for 5.5.31, 7.0.1 - 7.0.2
2016-03-13
Output for 5.5.30, 5.6.14 - 5.6.16, 7.0.0
2016-03-20
Output for 5.5.34, 5.6.13, 5.6.20
2016-04-03
Output for 5.5.27 - 5.5.29, 5.6.11 - 5.6.12
2016-04-10
Output for 5.5.25 - 5.5.26, 5.6.8 - 5.6.10
2016-04-17
Output for 5.5.24, 5.5.35
2016-05-15
Output for 5.4.45
2015-09-06
Output for 5.4.39 - 5.4.44
2015-08-09
Output for 5.4.34 - 5.4.38
2015-03-08
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/tMGT3 on line 2 Fatal error: Call to undefined method DateTime::sub() in /in/tMGT3 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/tMGT3 on line 2 Fatal error: Class 'DateTime' not found in /in/tMGT3 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/tMGT3 on line 2 Fatal error: Cannot instantiate non-existent class: datetime in /in/tMGT3 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/tMGT3 on line 2 Fatal error: Cannot instantiate non-existent class: datetime in /in/tMGT3 on line 2

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