The ReflectionClass::getConstant() function is an inbuilt function in PHP which is used to return the value of the defined constant.
Syntax:
mixed ReflectionClass::getConstant( string $name )
Parameters: This function accepts a parameter Name which is the name of the defined constant.
Return Value: This function returns the value of the defined constant.
Below programs illustrate the ReflectionClass::getConstant() function in PHP:
Program 1:
<?php // Declaring a class named as Department class Department { // Defining a constant const First = "CSE"; } // Using the ReflectionClass() function // over the Department class $A = new ReflectionClass('Department'); // Calling the getConstant() function over // First constant $a = $A->getConstant('First'); // Getting the value of the defined constant print_r($a); ?> |
Output:
CSE
Program 2:
<?php // Declaring a class named as Company class Company { // Defining a constant const First = "neveropen"; const Second = "GFG"; const Third = "gfg"; } // Using the ReflectionClass() function // over the Company class $A = new ReflectionClass('Company'); // Calling the getConstant() function over // the defined constants and // getting the value of the defined constants print_r($A->getConstant('First')); echo("\n"); print_r($A->getConstant('Second')); echo("\n"); print_r($A->getConstant('Third')); ?> |
Output:
neveropen GFG gfg
Reference: https://www.php.net/manual/en/reflectionclass.getconstant.php
