enum_exists

    (PHP 8 >= 8.1.0)

    enum_exists — Checks if the enum has been defined

    Description

    enum_exists(string$enum, bool$autoload = true): bool

    This function checks whether or not the given enum has been defined.

    Parameters

    enum

    The enum name. The name is matched in a case-insensitive manner.

    autoload

    Whether to autoload if not already loaded.

    Return Values

    Returns true if enum is a defined enum, false otherwise.

    Examples

    Example #1 enum_exists() example

    <?php
    // Check that the enum exists before trying to use it
    if (enum_exists(Suit::class)) {
    $myclass = Suit::Hearts;
    }
    ?>

    See Also

    To Top