(PHP 5, PHP 7, PHP 8)
ReflectionClass::implementsInterface — インターフェイスの実装を調べる
インターフェイスを実装しているかどうかを調べます。
interfaceインターフェイスの名前。
ReflectionClass::implementsInterface() は、
interface がインターフェイスでない場合に
ReflectionException をスローします。
Note that this method also returns true when the thing you're reflecting is the interface you're checking for:<?phpinterface MyInterface {}$reflect = new ReflectionClass('MyInterface');var_dump($reflect->implementsInterface('MyInterface')); // bool(true)?>interface Factory{ public function sayHello();}class ParentClass implements Factory{ public function sayHello() { echo "hello\n"; }}class ChildrenClass extends ParentClass{}$reflect = new ReflectionClass('ParentClass');var_dump($reflect->implementsInterface('Factory'));$second_ref = new ReflectionClass('ChildrenClass');var_dump($second_ref->isSubclassOf('ParentClass'));$third_ref = new ReflectionClass('Factory');var_dump($third_ref->isInterface());//can not be called as staticvar_dump(ReflectionClass::isInterface('Factory'));die;//#resultbool(true)bool(true)bool(true)PHP Fatal error: Non-static method ReflectionClass::isInterface() cannot be called statically//checks that whether class Fruit implements interface apple or not interface Apple { function taste();}class Fruit implements Apple { function taste() { echo "Seet"; }}$obj=new ReflectionClass('Fruit');var_dump($obj->implementsInterface('Apple')); //Here it will checks that whether class Fruit implements interface apple or not