如何使用codeigniter从多个输入上传文件

我有三个不同的输入文件，我想从不同的文件夹上传它。我下面的代码在上传过程中可以正常工作，但它只会进入一个文件夹，该文件夹始终位于org_图表文件夹中

这是来自我的控制器：

    foreach ($_FILES as $key => $value) {
        if ($key == "updated-org-chart") {
            $config['allowed_types'] = 'pdf';
        $config['upload_path']   = './assets/manpower_requisition/org_chart/';
        $this->load->library('upload', $config);
        $this->upload->do_upload($key);
        }elseif ($key == "job-description") {
            $config['allowed_types'] = 'pdf';
        $config['upload_path']   = './assets/manpower_requisition/jd/';
        $this->load->library('upload', $config);
        $this->upload->do_upload($key);
        }elseif ($key == "bsc") {
            $config['allowed_types'] = 'pdf';
        $config['upload_path']   = './assets/manpower_requisition/bsc/';
        $this->load->library('upload', $config);
        $this->upload->do_upload($key);
        }
    }

---

您可以使用如下所示的配置：

foreach ($_FILES as $key => $value) {
    switch ($key) {
        case 'updated-org-chart':
            $config['upload_path']   = './assets/manpower_requisition/org_chart/';
            break;

        case 'job-description':
            $config['upload_path']   = './assets/manpower_requisition/jd/';
            break;

        case 'bsc':
            $config['upload_path']   = './assets/manpower_requisition/bsc/';
            break;

        default:
            $config['upload_path']   = './assets/manpower_requisition/org_chart/';
            break;
    }
    $config['allowed_types'] = 'pdf';
    $this->load->library('upload', $config);
    $this->upload->do_upload($key);
}

---

在花了很长时间解决这个问题之后，我找到了一个解决问题的方法。Codeigniter不允许使用新参数调用该类两次，而是必须重新初始化upload类。这里有一些文章似乎与这个问题相同

---

对路径配置$config1['upload_path']='path1'使用不同的变量$config2['upload_path']='path2'；我已经这样做了，但仍然转到同一个文件夹@丹尼沙利

$config['allowed_types'] = 'pdf';    
$this->load->library('upload', $config);
$this->upload->initialize($config);
$this->upload->do_upload($key);