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<?php interface ShipInterface {} abstract class AbstractShip implements ShipInterface {} class ShipOnlyAbstract extends AbstractShip {} class ShipWithInterface extends AbstractShip implements ShipInterface {} $shipOnlyAbstract = new ShipOnlyAbstract(); $shipWithInterface = new ShipWithInterface(); var_dump($shipOnlyAbstract instanceof AbstractShip); var_dump($shipWithInterface instanceof AbstractShip); var_dump($shipOnlyAbstract instanceof ShipInterface); var_dump($shipWithInterface instanceof ShipInterface); var_dump(class_implements($shipOnlyAbstract)); var_dump(class_implements($shipWithInterface)); var_dump(class_parents($shipOnlyAbstract)); var_dump(class_parents($shipWithInterface)); $refShipOnlyAbstract = new ReflectionClass("ShipOnlyAbstract"); $refShipWithInterface = new ReflectionClass("ShipWithInterface"); var_dump($refShipOnlyAbstract->getInterfaceNames()); var_dump($refShipWithInterface->getInterfaceNames()); var_dump($refShipOnlyAbstract->implementsInterface("ShipInterface")); var_dump($refShipWithInterface->implementsInterface("ShipInterface"));
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
bool(true) bool(true) bool(true) bool(true) array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } array(1) { [0]=> string(13) "ShipInterface" } array(1) { [0]=> string(13) "ShipInterface" } bool(true) bool(true)
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 bool(true) bool(true) bool(true) bool(true) array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } array(1) { [0]=> string(13) "ShipInterface" } array(1) { [0]=> string(13) "ShipInterface" } bool(true) bool(true)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
bool(true) bool(true) bool(true) bool(true) array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } Fatal error: Call to undefined method ReflectionClass::getInterfaceNames() in /in/CGiD5 on line 30
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/CGiD5 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/CGiD5 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/CGiD5 on line 3
Process exited with code 255.
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