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使用Codeigniter錯誤上傳圖片

[英]Image upload using codeigniter error

我正在嘗試在代碼點火器中制作圖像上傳表單,但出現以下錯誤。

嚴重程度:注意

消息:未定義的索引:image_file

文件名:controllers / men.php

行號:23

回溯:

文件:C:\\ xampp \\ htdocs \\ CodeIgniter-3.1.8 \\ application \\ controllers \\ men.php行:23函數:_error_handler

文件:C:\\ xampp \\ htdocs \\ CodeIgniter-3.1.8 \\ index.php行:315功能:require_once

這是我的觀點,控制器和模型代碼

1)查看

<!DOCTYPE html>
<html>
    <head>
        <title>image</title>
        <link rel="stylesheet" type="text/css" href="<?php echo base_url();?>/public/css/bootstrap.css">
    </head>
    <body>
        <form method="post" action="<?php echo base_url()?>men/image_upload" id="upload_form" />
            <input type="file" name="image_file">
            <input type="submit" id="upload" name="upload" value="Upload" />
        </form>
    </body>
</html>

2)控制器

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

class Men extends CI_Controller
{
    public function index(){
        $this->load->view("imageupload");
    }

    public function image_upload(){
        $config['upload_path']='./uploads';
        $config['allowed_types']='*';
        $this->load->library('upload',$config);
        $this->upload->do_upload('image_file');
        $image_file = $this->upload->data();
        $data=array('image_file'=> $image_file['image_file']);
        $this->load->model("mymodel");
        $this->mymodel->imagedone($data);   
    }
}
?>

3)型號

<?php
class Mymodel extends CI_Model{

    function imagedone($data){
        $query = $this->db->insert("image_tbl",$data);
        if($query)
        {
            echo "File is uploaded";
        }
        else{
            echo "failure";
        }
    } 
}

此錯誤可能是由於缺少表單標記的屬性而引起的,請在表單標記中添加-> enctype =“ multipart / form-data”屬性,然后嘗試執行以下操作:

<form method="post" action="<?php echo base_url()?>men/image_upload" id="upload_form" enctype="multipart/form-data" /> <input type="file" name="image_file"> <input type="submit" id="upload" name="upload" value="Upload" /> </form>

首先,如果要上傳文件,則需要在表單中添加enctype屬性。 將enctype = multipart / form-data屬性添加到表單,然后重試。

<!DOCTYPE html>
<html>
<head>
<title>image</title>
<link rel="stylesheet" type="text/css" href="<?php echo base_url();? 
 >/public/css/bootstrap.css">
</head>
  <body>
  <form method="post" enctype="multipart/form-data" action="<?php echo base_url()?>men/image_upload"  
 id="upload_form" />
    <input type="file" name="image_file">
    <input type="submit" id="upload" name="upload" value="Upload" />
</form>

 </body>
  </html>

在表單中使用此屬性enctype =“ multipart / form-data”

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