PHP | ReflectionClass implementsInterface() Function

PHP | ReflectionClass isInterface() Function

Last Updated : 17 Dec, 2019

The ReflectionClass::isInterface() function is an inbuilt function in PHP which is used to check the specified class is an interface or not. Syntax:

bool ReflectionClass::isInterface( void )

Parameters: This function does not accept any parameters. Return Value: This function returns TRUE if the specified class is an interface, otherwise FALSE. Below programs illustrate the ReflectionClass::isInterface() function in PHP: Program 1:

php

<?php

// Initializing a user-defined interface Departments
interface Departments {
    public function CSE();
}

// Using ReflectionClass() over the
// user-defined interface Departments
$class = new ReflectionClass('Departments');

// Calling the isInterface() function
$instance = $class->isInterface();

// Getting the value true or false
var_dump($instance);
?>

Output:

bool(true)

Program 2:

php

<?php

// Initializing a user-defined class TestInterface
Class TestInterface {
}

// Using ReflectionClass() over the
// user-defined class TestInterface
$class = new ReflectionClass('TestInterface');

// Calling the isInterface() function and
// getting the value true or false
var_dump($class->isInterface());
?>

Output:

bool(false)

Reference: https://www.php.net/manual/en/reflectionclass.isinterface.php

PHP | ReflectionClass implementsInterface() Function

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