3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** @implements IteratorAggregate<DateTimeInterface> */ class MyDatePeriod extends DatePeriod implements IteratorAggregate { public function getIterator(): self { return $this; } } function getDatePeriod(string $period): DatePeriod { return new MyDatePeriod($period); } $datePeriod = getDatePeriod("R4/2012-07-01T00:00:00Z/P7D"); if ($datePeriod instanceof IteratorAggregate) { $datePeriod->getIterator(); }
Output for 8.5.0
Fatal error: Declaration of MyDatePeriod::getIterator(): MyDatePeriod must be compatible with DatePeriod::getIterator(): Iterator in /in/Pf4Nb on line 6 Stack trace: #0 {main}
Process exited with code 255.
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 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
Fatal error: Declaration of MyDatePeriod::getIterator(): MyDatePeriod must be compatible with DatePeriod::getIterator(): Iterator in /in/Pf4Nb on line 6
Process exited with code 255.
Output for 8.3.28
/bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28)
Process exited with code 1.
Output for 7.4.0 - 7.4.33

preferences:
138.54 ms | 410 KiB | 5 Q