Phan\CodeBase::addFunctionsByNames PHP Method

    private function addFunctionsByNames(array $function_name_list)
    {
        foreach ($function_name_list as $i => $function_name) {
            foreach (FunctionFactory::functionListFromName($this, $function_name) as $function_or_method) {
                if ($function_or_method instanceof Method) {
                    $this->addMethod($function_or_method);
                } else {
                    $this->addFunction($function_or_method);
                }
            }
        }
    }