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ReflectionClass::implementsInterface

(PHP 5, PHP 7, PHP 8)

ReflectionClass::implementsInterfaceImplements interface

Description

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

Checks whether it implements an interface.

Parameters

interface

The interface name.

Return Values

Returns true on success or false on failure.

Errors/Exceptions

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

See Also

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User Contributed Notes 3 notes

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1
jtunaley at gmail dot com
5 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)
?>
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1
keepchen2016 at gmail dot com
6 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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0
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
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