Undefined index: image in C:\wamp\www\netupdate.php on line 21

Question

I am facing some weird problem. Here is my file upload snipped of the form through which I am trying to upload the image to my server

<input type="file" name="image" id="image">

And I am getting the error:

Undefined index: image in C:\wamp\www\netupdate.php on line 21

My upload script is as following

// file upload scrpt 
  $name= $_FILES['image']['name'];
  $tmp_name = $_FILES['image']['tmp_name']; 
  $type = $_FILES['image']['type']; 
  $size = $_FILES['image']['size'];
  $pathAndName = "file:///c:/wamp/www/upload/networking/".$name;
  $moveResult = move_uploaded_file($tmp_name, $pathAndName);

Now the weird portion is that all other parameters are being accepted in the php script other than the image, I am writing everything to my database and its giving a success message but only this portion is giving errors and even weirder part is that a similar script is working perfectly in other mysql table so I guess there is nothing wrong in php_ini.

Answer 1

您可能在<form>元素上缺少enctype="multipart/form-data" 。

<form action="netupdate.php" method="post" enctype="multipart/form-data">

Answer 2

确保您的表单标签上有enctype="multipart/form-data"

<form id="xx" name="xxx" action="xxx.php" method="post" enctype="multipart/form-data">