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<?php interface I { public function example($a, $b, $c); } class A implements I { public function example($a, $b = null, $c = null): int { } } class B extends A { public function example($a, $b, $c = null): string { } } ?>
Output for 8.5.0
Fatal error: Declaration of B::example($a, $b, $c = null): string must be compatible with A::example($a, $b = null, $c = null): int in /in/gl1Gt on line 10 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14
Fatal error: Declaration of B::example($a, $b, $c = null): string must be compatible with A::example($a, $b = null, $c = null): int in /in/gl1Gt on line 10
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Declaration of B::example($a, $b, $c = NULL): string must be compatible with A::example($a, $b = NULL, $c = NULL): int in /in/gl1Gt on line 10
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
Fatal error: Declaration of B::example($a, $b, $c = NULL): string must be compatible with A::example($a, $b = NULL, $c = NULL): int in /in/gl1Gt on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20

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