ReflectionClass
PHP Manual

ReflectionClass::getConstant

Gets defined constant

Description

public mixed ReflectionClass::getConstant(string $name)

Gets the defined constant.

Parameters

name

The name of the class constant to get.

Return Values

Value of the constant with the name name. Returns false if the constant was not found in the class.

Changelog

Version Description
8.5.0 Calling ReflectionClass::getConstant for constants that do not exist has been deprecated.

Examples

Example #1 Usage of ReflectionClass::getConstant

<?php

class Example {
    const C1 = false;
    const C2 = 'I am a constant';
}

$reflection = new ReflectionClass('Example');

var_dump($reflection->getConstant('C1'));
var_dump($reflection->getConstant('C2'));
var_dump($reflection->getConstant('C3'));
?>

The above example will output:

bool(false)
string(15) "I am a constant"
bool(false)

See Also

  • ReflectionClass::getConstants