使用Codeigniter错误上传图片
[英]Image upload using codeigniter error
问题描述
i am trying to make an image upload form in code igniter i am getting the following error. 
我正在尝试在代码点火器中制作图像上传表单，但出现以下错误。
Severity: Notice
Message: Undefined index: image_file
Filename: controllers/men.php
Line Number: 23
Backtrace:
File: C:\\xampp\\htdocs\\CodeIgniter-3.1.8\\application\\controllers\\men.php Line: 23 Function: _error_handler
File: C:\\xampp\\htdocs\\CodeIgniter-3.1.8\\index.php Line: 315 Function: require_once
This is my view,controller and model code 这是我的观点，控制器和模型代码
1) View 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) Controller 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) Model 3）型号
<?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";
}
}
}
3 个解决方案
解决方案1
2 2018-07-25 11:02:59
此错误可能是由于缺少表单标记的属性而引起的，请在表单标记中添加-> enctype =“ multipart / form-data”属性，然后尝试执行以下操作：
<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>
解决方案2
0 2018-07-25 10:53:29
First of all if you want to upload file you need to add enctype attribute to the form. 首先，如果要上传文件，则需要在表单中添加enctype属性。 Add enctype= multipart/form-data attribute to the form and try again. 将enctype = multipart / form-data属性添加到表单，然后重试。
<!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>
解决方案3
0 2018-07-25 11:07:47
在表单中使用此属性enctype =“ multipart / form-data”
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