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<?php $month_start = new DateTime("first day of this month"); echo $month_start->format('Y-m-d H:i:s') . "\n"; $month_start = new DateTime("first day of March"); echo $month_start->format('Y-m-d H:i:s') . "\n";
based on GVWss
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.23, 7.4.0 - 7.4.11, 8.0.0alpha1 - rc2
2020-06-01 16:07:26 2020-03-01 00:00:00
Output for 5.2.0 - 5.2.17
Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (first day of this month) at position 10 (o): The timezone could not be found in the database' in /in/lG3GL:4 Stack trace: #0 /in/lG3GL(4): DateTime->__construct('first day of th...') #1 {main} thrown in /in/lG3GL on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/lG3GL on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/lG3GL on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/lG3GL on line 4