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run code in 200+ php & hhvm versions
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<?php $sundayTest = new DateTime('2014-12-15'); $sundayTest->modify('monday this week'); echo $sundayTest->format('Y-m-d');
based on Pfb7p
Output for 5.2.7 - 7.3.0beta1
2014-12-15
Output for 5.2.0 - 5.2.6
2014-12-22
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/PLYp0 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/PLYp0 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/PLYp0 on line 3