Gets defined constant

# ReflectionClass::getConstant

(PHP 5, PHP 7, PHP 8)

ReflectionClass::getConstant — Gets defined constant

### Description

public ReflectionClass::getConstant(string `$name`): mixed

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.

### 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() - Gets constants

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