php - Laravel Excel : CSV to Array

Question

因此，我正在制作一个表单，我希望为用户提供上传 CSV 的选项，以便自动填充表单。所以我想我应该构建一个函数来读取 CSV，然后将每一行作为对象放入数组中，然后我可以将其传回我的 Laravel Blade 模板。我唯一的问题是，我从函数返回的数组始终为空。有什么想法吗？

private function import($path) {
    $applicants = [];

    Excel::load($path, function(LaravelExcelReader $excel) use ($applicants){
        $excel->each(function(Collection $line) use ($applicants){      
            $name = new \stdClass;    

            $name->first = $line->get('first');
            $name->middle = $line->get('middle');
            $name->last = $line->get('last');
            $name->birthdate = $line->get('birthdate');
            $name->ssn = $line->get('ssn');
            $name->email = $line->get('email');
            $name->mobile_phone = $line->get('mobile_phone');
            $name->home_phone = $line->get('home_phone');
            $name->street = $line->get('street');
            $name->city = $line->get('city');
            $name->state = $line->get('state');
            $name->zip = $line->get('zip');

            array_push($applicants, $name);
        });
    });    

    return $applicants;
}

Answer 1

在 use 语句中使用 & 运算符进行尝试:

Excel::load($path, function(LaravelExcelReader $excel) use (&$applicants){
   ...
}

或者

将 $applicants 设为类属性，然后在函数中将其用作:

private function import($path) {
    $this->applicants = [];

    Excel::load($path, function(LaravelExcelReader $excel) {
        $excel->each(function(Collection $line) {      
            ...

            array_push($this->applicants, $name);
        });
    });    

    return $this->applicants;
}