PHP | ReflectionClass getExtension() Function

The ReflectionClass::getExtension() function is an inbuilt function in PHP which is used to return the ReflectionExtension object which represents the extension for the defined class, or NULL for the user-defined classes. Syntax:

ReflectionExtension ReflectionClass::getExtension( void )

Parameters: This function does not accept any parameters. Return Value: This function returns a ReflectionExtension object which represents the extension for the defined class, or NULL for the user-defined classes. Below programs illustrate the ReflectionClass::getExtension() function in PHP: Program 1: php

<?php
 
// Defining a user-defined class named as Departments
class Departments {
    static $Dept1 = 'CSE';
    private static $Dept2 = 'ECE';
    public static $Dept3 = 'EE';
}
 
// Using ReflectionClass over the class Departments
$ReflectionClass = new ReflectionClass('Departments');
 
// Calling getExtension() functions
$A = $ReflectionClass->getExtension();
 
// Getting the ReflectionExtension object
var_dump($A);
?>

Program 2: php

<?php
 
// Using ReflectionClass
$ReflectionClass = new ReflectionClass('ReflectionClass');
 
// Calling getExtension() functions
$A = $ReflectionClass->getExtension();
 
// Getting the ReflectionExtension object
var_dump($A);
?>

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