PHPDocBlock for getKey incorrect

[burnhamrobertp]

/**
     * Gets the key of the provided value.
     *
     * @param string $value The value.
     *
     * **@return boolean The key if found, false otherwise.**
     */
    public static function getKey($value)
    {
        return array_search($value, static::getAll(), true);
    }

array_search will return the element, if found, which would be a string

...

class UserRoles extends AbstractEnum
{
    const ADMIN = 1;
    const MODERATOR = 2;
    const CLIENT = 3;
    const WRITER = 4;
}

UserRoles::getKey(3) will return 'client'