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()); ?> |
Output:
bool(false)
Reference: https://www.php.net/manual/en/reflectionclass.isinstantiable.php
