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<?php interface ConfigurationProvider { public function getConfig() : array; } final class ConfigurationProviderNonImplementing { public function getConfig() { return []; } } $provider = new ConfigurationProviderNonImplementing(); var_dump(! $provider instanceof ConfigProviderInterface && ! is_callable([$provider, 'getConfig']));
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
bool(false)

preferences:
154.85 ms | 403 KiB | 183 Q