PHP | ReflectionClass isInstantiable() Function

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

Syntax:

bool ReflectionClass::isInstantiable( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns TRUE if the specified class is instantiable, otherwise return FALSE.

Below programs illustrate the ReflectionClass::isInstantiable() function in PHP:

Program 1:

<?php 
  
// Initializing a user-defined Class Departments 
class Departments { 
    public function CSE() { } 
} 
  
// Using ReflectionClass() over the 
// user-defined class Departments 
$class = new ReflectionClass('Departments'); 
  
// Calling the isInstantiable() function 
$instance = $class->isInstantiable(); 
  
// Getting the value true or false 
var_dump($instance); 
?> 

Output:

bool(true)

Program 2:

<?php 
  
// Initializing a interface named as TestFunction 
interface TestFunction { 
    function F1(); 
    function F2(); 
} 
  
// Using ReflectionClass() over the 
// specified interface 
$class = new ReflectionClass('TestFunction'); 
  
// Calling the isInstantiable() function and 
// getting the value true or false 
var_dump($class->isInstantiable()); 
?> 