ReflectionClass::implementsInterface

(PHP 5, PHP 7, PHP 8)

ReflectionClass::implementsInterface — Implements interface

Descrizione

public ReflectionClass::implementsInterface(ReflectionClass|string $interface): bool

Checks whether it implements an interface.

Elenco dei parametri

interface: The interface name.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Errori/Eccezioni

ReflectionClass::implementsInterface() throws an ReflectionException if interface is not an interface.

Vedere anche:

ReflectionClass::isInterface() - Checks if the class is an interface
ReflectionClass::isSubclassOf() - Checks if a subclass
interface_exists() - Checks if the interface has been defined
Object Interfaces

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User Contributed Notes 3 notes

down

jtunaley at gmail dot com ¶

6 years ago

Note that this method also returns true when the thing you're reflecting is the interface you're checking for:

<?php
interface MyInterface {}

$reflect = new ReflectionClass('MyInterface');
var_dump($reflect->implementsInterface('MyInterface')); // bool(true)
?>

down

dhairya dot coder at gmail dot com ¶

8 years ago

//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

down

keepchen2016 at gmail dot com ¶

7 years ago

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 static
var_dump(ReflectionClass::isInterface('Factory'));
die;
//#result
bool(true)
bool(true)
bool(true)
PHP Fatal error:  Non-static method ReflectionClass::isInterface() cannot be called statically

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