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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)

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