如何从另一个函数中的一个函数获取返回变量

Question

Using an Excel library , how do I make function check_stuff return false when needed? As of right now, $this->check_stuff($path) always returns true . Keep in mind that I cannot modify class Excel .

private function check_stuff($path) {
    Excel::filter('chunk')->load($path)->chunk(250, function($results) {
    // check something
        return false;
    });

    return true;
}

Answer 1

Try to import it in the anonymous function:

private function check_stuff($path) {

    $result = true;
    Excel::filter('chunk')->load($path)->chunk(250, function($results) use (&$result) {
        // check something
        $result = false;
    });

    return $result;
}

Answer 2

Have you tried this?

private function check_stuff($path) {
  return Excel::filter('chunk')->load($path)->chunk(250, function($results) {
    // check something
    return false;
  });
}