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<?php $datetime = new \DateTimeImmutable( '2770-01-00 15:00:00.000000', new \DateTimeZone('UTC') ); \var_dump($datetime->format('j') === '0'); \var_dump($datetime);
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
bool(false) object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2769-12-31 15:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" }
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
bool(true) object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2770-01-00 15:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" }

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186.91 ms | 410 KiB | 5 Q