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<?php echo (new DateTimeImmutable())->modify('+ first monday')->format('Y-m-d H:i:s');
Output for git.master, git.master_jit
Warning: DateTimeImmutable::modify(): Failed to parse time string (+ first monday) at position 0 (+): Unexpected character in /in/iS41V on line 3 Fatal error: Uncaught Error: Call to a member function format() on bool in /in/iS41V:3 Stack trace: #0 {main} thrown in /in/iS41V on line 3
Process exited with code 255.
Output for rfc.property-hooks
Fatal error: Uncaught DateMalformedStringException: DateTimeImmutable::modify(): Failed to parse time string (+ first monday) at position 0 (+): Unexpected character in /in/iS41V:3 Stack trace: #0 /in/iS41V(3): DateTimeImmutable->modify('+ first monday') #1 {main} thrown in /in/iS41V on line 3
Process exited with code 255.

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