3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface ValidationInterface { public function run(?array $data = null, ?string $group = null, ?string $dbGroup = null): bool; } class Validation implements ValidationInterface { public function run(?array $data = null, ?string $group = null, $dbGroup = null): bool { return true; } } class MyValidation extends Validation { public function run(?array $data = null, ?string $group = null, ?string $dbGroup = null): bool { return true; } }
Output for 8.5.0 - 8.5.1
Fatal error: Declaration of MyValidation::run(?array $data = null, ?string $group = null, ?string $dbGroup = null): bool must be compatible with Validation::run(?array $data = null, ?string $group = null, $dbGroup = null): bool in /in/VMDWp on line 15 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 - 8.3.28, 8.4.1 - 8.4.14
Fatal error: Declaration of MyValidation::run(?array $data = null, ?string $group = null, ?string $dbGroup = null): bool must be compatible with Validation::run(?array $data = null, ?string $group = null, $dbGroup = null): bool in /in/VMDWp on line 15
Process exited with code 255.

preferences:
119.85 ms | 410 KiB | 5 Q