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<?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 git.master, git.master_jit, rfc.property-hooks
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.

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