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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