php - Codeigniter 文件上传错误

Question

我正在尝试在 codeigniter 中上传图片。

这是我的查看文件代码。

<form action="<?php echo site_url('pages/data_submitted') ?>" method="get" enctype="multipart/form-data">
Image: <input type="file" name="image"/>
<button>Submit</button>
</form>

这是我的 Controller 代码。

class Pages extends CI_Controller 
{ 
 public function data_submitted(){
 $config['upload_path']   =   "img/";
$this->load->library('upload',$config);
$this->upload->do_upload();
$finfo=$this->upload->data();
$data = $this->upload->display_errors();

$this->load->model('user_model');
$this->user_model->insert_item($data);
}
}

这是我的模型代码

<?php
class User_model extends CI_Model {
function __construct(){
    /* Call the Model constructor */
    parent::__construct();
}


public function insert_item($item){

    print_r($item);
}
}
?>

这段代码有什么问题... 这里我传递 $data 只是为了检查是否发生任何错误。 它显示“您没有选择要上传的文件。”即使我选择一个文件。 请帮助我。

Answer 1

引用这段代码。这肯定对你有用

public function uploadImage() {
        $this->load->helper(array('form', 'url'));  
        $config['upload_path'] = 'assets/images/b2bcategory';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size'] = '1000';
        $config['max_width'] = '2024';
        $config['max_height'] = '1768';
        $config['width'] = 75;
        $config['height'] = 50;
        if (isset($_FILES['catimage']['name'])) {
            $filename = "-" . $_FILES['catimage']['name'];
            $config['file_name'] = substr(md5(time()), 0, 28) . $filename;
        }
        $config['overwrite'] = TRUE;
        $config['remove_spaces'] = TRUE;
        $field_name = "catimage";
        $this->load->library('upload', $config);
        if ($this->input->post('selsub')) {
            if (!$this->upload->do_upload('catimage')) {
                //no file uploaded or failed upload
                $error = array('error' => $this->upload->display_errors());
            } else {
                $dat = array('upload_data' => $this->upload->data());
                $this->resize($dat['upload_data']['full_path'],           $dat['upload_data']['file_name']);
            }
            $ip = $_SERVER['REMOTE_ADDR'];
            if (empty($dat['upload_data']['file_name'])) {
                $catimage = '';
            } else {
                $catimage = $dat['upload_data']['file_name'];
            }
            $data = array(            
                'ctg_image' => $catimage,
                'ctg_dated' => time()
            );
            $this->b2bcategory_model->form_insert($data);

        }
    }