Php CodeIgniter 4：上载文件

我在使用CodeIgniter 4上传表单中的文件时遇到问题，我找不到问题所在。你能帮帮我吗？文件名正常，问题是它没有将文件移动到指定的目录中，因为我遇到了以下错误：调用成员函数move（）时为null。 WRITEPATH的值为：C:\xampp\htdocs\myproject\writable\

我上传的视图部分如下所示：

<div class="card-body">
    <label for="exampleInputFile">Fisier</label>
    <div class="form-group">
        <div class="input-group">
            <div class="custom-file">
                <input type="file" class="custom-file-input" name="customFile" id="customFile" required>
                <label class="custom-file-label" for="exampleInputFile">Alege Fisierul</label>
            </div>
        </div>
    </div>
</div>

$img = $this->request->getFile('customFile');
$img->move(WRITEPATH . 'uploads');

我使用以下内容获取文件名：

$this->request->getVar（'customFile'）

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谢谢大家!

在控制器中像这样

$config['upload_path'] = './upload/painting/';
    $config['allowed_types'] = 'jpg|png|jpeg'; // here you want to define file type
    $config['max_width'] = '250';
    $config['max_height'] = '300';
    $config['encrypt_name'] = TRUE;
    $this->load->library('upload', $config);
    //  $this->upload->do_upload('profile_pic');
        if ($this->upload->do_upload('ptn_url')) {
          $data = array('upload_data' => $this->upload->data());
    //    print_r($data);
          $_POST['ptn_url'] = "upload/painting/" . $data['upload_data']['file_name'];
          $_POST['user_id'] = $this->session->user_data['user_id'];

$route['upload-image'] = 'user';
$route['store-image'] = 'user/add';
$route['painting/(:num)'] = 'painting';

在位于config文件夹的routes.php文件中 您需要为存储映像定义路径 像这样

$config['upload_path'] = './upload/painting/';
    $config['allowed_types'] = 'jpg|png|jpeg'; // here you want to define file type
    $config['max_width'] = '250';
    $config['max_height'] = '300';
    $config['encrypt_name'] = TRUE;
    $this->load->library('upload', $config);
    //  $this->upload->do_upload('profile_pic');
        if ($this->upload->do_upload('ptn_url')) {
          $data = array('upload_data' => $this->upload->data());
    //    print_r($data);
          $_POST['ptn_url'] = "upload/painting/" . $data['upload_data']['file_name'];
          $_POST['user_id'] = $this->session->user_data['user_id'];

$route['upload-image'] = 'user';
$route['store-image'] = 'user/add';
$route['painting/(:num)'] = 'painting';

有关文件上载的更多参考信息

我希望这对你有帮助

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谢谢…

这在Codeigniter 4中起到了作用：

 $file = $this->request->getFile('file');

        if (!$file->isValid()) {
            return $this->fail($file->getErrorString());
        }

        $file->move(ROOTPATH . 'public\uploads\documents');

        $name = $file->getName();

---

谢谢大家!

这回答了你的问题吗？请出示你的全部表格好吗？您还可以发布$\u文件的输出吗？也许你忘了把你的表格作为多部分。