Undefined Index While Uploading File

Undefined Index while uploading file

Change your PHP script as below and try

<?php 
    if(isset($_POST['submit'])){
        $name       = $_FILES['file']['name'];  
        $temp_name  = $_FILES['file']['tmp_name'];  
        if(isset($name) and !empty($name)){
            $location = '../uploads/';      
            if(move_uploaded_file($temp_name, $location.$name)){
                echo 'File uploaded successfully';
            }
        } else {
            echo 'You should select a file to upload !!';
        }
    }
?>

Notice: Undefined index: file uploading video

You're trying to process the file upload before a file is uploaded. You have to check if the form was posted first.

<?php

if (isset($_FILES['file'])) {
    $allowedExts = array("jpg", "jpeg", "gif", "png", "mp3", "mp4", "wma");
    // $_FILES = $_FILES['file'];  // <-- remove this line
    $extension = pathinfo($_FILES['file']['name'], PATHINFO_EXTENSION);
    $unique = date('Y-m-d_H-i-s');

    if ((null !==($_FILES["file"]["type"] == "video/mp4")
        || (null !==($_FILES["file"]["type"] == "audio/mp3"))
        || ($_FILES["file"]["type"] == "audio/wma")
        || ($_FILES["file"]["type"] == "image/pjpeg")
        || ($_FILES["file"]["type"] == "image/gif")
        || ($_FILES["file"]["type"] == "image/jpeg"))

    && ($_FILES["file"]["size"] < 2000000)
    && in_array($extension, $allowedExts)) {

        if ($_FILES["file"]["error"] > 0) {

            echo "Return Code: " . $_FILES["file"]["error"] . "<br />";

        } else {

            echo 'File uploaded successfully';

            if (file_exists("upload/" . $_FILES["file"]["name"])) {

                echo $_FILES["file"]["name"] . " already exists. ";

            } else {

                $datetime = date('Y-m-d_H-i-s');

                move_uploaded_file($_FILES["file"]["tmp_name"],
                "uploads/" . $_FILES["file"]["name"] . $datetime . md5($_FILES["file"]["name"]));

            }
        }

    } else {

        echo "Invalid file";
    }
}
?>

<form action="profile.php" id="videoupload" method="post" enctype="multipart/form-data">

<label for="file"><span>Filename:</span></label>
<input type="file" name="file" id="file" /> 
<br />
<input type="submit" name="submit" value="Submit" />

</form>

undefined index in php while uploading an image file

When you first load the page, $_FILES['myimage']['name'] and $_FILES['myimage']['tmp_name']; will be undefined because you haven't uploaded anything yet.

The solution is:

• First add a name attribute your submit button, like this:

  <button type="submit" name="submit" class="btn btn-info">upload</button>
  

• And wrap your form processing code inside an if block, like this:

  // your code
  
  if(isset($_POST['submit'])){
      $location="profilepics/";
      $name=$_FILES['myimage']['name'];
      $temp_name=$_FILES['myimage']['tmp_name'];
      if(isset($name)){
          move_uploaded_file($temp_name,$location.$name);
      }
  }
  

Undefined index error while trying to upload images

Change the following:

<form action="" method="POST">

to

<form action="" method="POST" enctype="multipart/form-data">

and try again.

To upload image using form you have to send form-data encoded as "multipart/form-data"

Notice: Undefined index: file when uploading file

For the next one looking for it :)

To upload a file you will need enctype="multipart/form-data":

<form enctype="multipart/form-data">
    <input type="file" name="file"/>
</form>

PHP Undefined index error $_FILES?

first: try to strict programming

error_reporting(E_ALL | E_STRICT);

also you must use isset for check is index for array available or not

if (isset($_POST['submitbtn']) && isset($_FILES['avatar'])) {
     // ...
}

also check php configuraion

file_uploads    "1"
upload_max_filesize     "2M"
post_max_size   "8M"
max_file_uploads    20

post max size must be larger than upload max file size.

also as guys said check form enctype

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