codeigniter 3-您没有选择要上传的文件

Posted 2023-05-08

【中文标题】codeigniter 3-您没有选择要上传的文件

【英文标题】：codeigniter 3- You did not select a file to upload

【发布时间】：2015-07-08 02:41:55

【问题描述】：

Post_plot.php（这是我的视图）

<form action="http://localhost:8080/ci/admin/plot/do_upload" enctype="multipart/form-data" method="post">

<input type="text" name="property_title" value=""  />

<input type="file" name="img" id="plot-img" value=""  />

<input type="submit" name="submit" value="Submit" />

</form> 

我有一个带有图片上传选项的长表单。

我正在使用do_upload函数上传文件

我收到以下错误

Array ( [name] => a.jpg [type] => image/jpeg [tmp_name] => C:\xampp\tmp\phpBD75.tmp [error] => 0 [size] => 132277 ) Array ( [error] =>
You did not select a file to upload.

)

Plot.php 控制器

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Plot extends CI_Controller 


    public function __construct()
    
        parent::__construct();
        $this->load->library('Admin_layout');
        $this->load->model('admin/plot_model');
        $this->config->load('plot_rules');
        $this->output->enable_profiler(TRUE);
    


    public function do_upload()
    
            $config['upload_path']          = '../images/';
            $config['allowed_types']        = 'gif|jpg|png';
            $config['max_size']             = 100;
            $config['max_width']            = 1024;
            $config['max_height']           = 768;

            $this->load->library('upload', $config);

            if ( ! $this->upload->do_upload($img))
            
                    $error = array('error' => $this->upload->display_errors());

                    print_r($error);
            
            else
            
                    $data = array('upload_data' => $this->upload->data());

                    //$this->load->view('upload_success', $data);
                    print_r($data);
            
    //do_upload


//class

我应该在 do_upload 函数中传递任何参数吗？

【参考方案1】：

在这部分尝试把

$img = "img" // input name="img"
$this->upload->do_upload($img)

如果不尝试/测试表格action="http://localhost:8080/ci/admin/plot/do_upload"

Codeigniter 2 用户指南 http://www.codeigniter.com/userguide2/libraries/file_uploading.html

Codeigniter 3 用户指南 http://www.codeigniter.com/user_guide/libraries/file_uploading.html?highlight=file%20upload

你可能需要在你的 route.php 中设置一些路由

代码

<?php defined('BASEPATH') OR exit('No direct script access allowed');

class Plot extends CI_Controller 

public function __construct()

    parent::__construct();
    $this->load->library('Admin_layout');
    $this->load->model('admin/plot_model');
    $this->config->load('plot_rules');
    $this->output->enable_profiler(TRUE);


public function index() 
   $this->load->view('upload_form', array('error' => ' ' ));


public function do_upload()

        $config['upload_path'] = './images/';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size']  = 100;
        $config['max_width']  = 1024;
        $config['max_height'] = 768;

        $this->load->library('upload', $config);

        $img = "img";

        if ( ! $this->upload->do_upload($img))
        
                $error = array('error' => $this->upload->display_errors());
                $this->load->view('upload_form', $error);

                print_r($error);
        
        else
        
                $data = array('upload_data' => $this->upload->data());

                $field_data = $this->upload->data();

                echo $field_data['file_name']; // etc 

                $this->load->view('upload_success', $data);
                print_r($data);
        

【讨论】：

是的，现在很好，但它说上传路径似乎无效。我的图像文件夹位于项目根目录 --application --images --system

而不是$config['upload_path] = '../images/'; 有很多.. 尝试$config['upload_path] = './images/'; 因为用户指南的图像目录应该在主目录中

我还添加了字段数据，以防您需要向数据库添加名称