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<?php $month = 1; $year = 2016; $firstDay = new DateTime("first day of {$month} {$year}"); echo $firstDay->format('Y-m-d');
Output for 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught DateMalformedStringException: Failed to parse time string (first day of 1 2016) at position 13 (1): Unexpected character in /in/TXmjQ:6 Stack trace: #0 /in/TXmjQ(6): DateTime->__construct('first day of 1 ...') #1 {main} thrown in /in/TXmjQ on line 6
Process exited with code 255.
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 Fatal error: Uncaught DateMalformedStringException: Failed to parse time string (first day of 1 2016) at position 13 (1): Unexpected character in /in/TXmjQ:6 Stack trace: #0 /in/TXmjQ(6): DateTime->__construct('first day of 1 ...') #1 {main} thrown in /in/TXmjQ on line 6
Process exited with code 255.
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Fatal error: Uncaught Exception: Failed to parse time string (first day of 1 2016) at position 13 (1): Unexpected character in /in/TXmjQ:6 Stack trace: #0 /in/TXmjQ(6): DateTime->__construct('first day of 1 ...') #1 {main} thrown in /in/TXmjQ on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Fatal error: Uncaught Exception: DateTime::__construct(): Failed to parse time string (first day of 1 2016) at position 13 (1): Unexpected character in /in/TXmjQ:6 Stack trace: #0 /in/TXmjQ(6): DateTime->__construct('first day of 1 ...') #1 {main} thrown in /in/TXmjQ on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (first day of 1 2016) at position 13 (1): Unexpected character' in /in/TXmjQ:6 Stack trace: #0 /in/TXmjQ(6): DateTime->__construct('first day of 1 ...') #1 {main} thrown in /in/TXmjQ on line 6
Process exited with code 255.

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