php upload script won't work

Question

I wanna make uploads of pictures possible on my homepage. I'm using a script by w3schools to do this:

This is the upload.html

<!DOCTYPE html>
<html>
<body>

<form action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>

</body>
</html>

And this is the upload.php

<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
    $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
    if($check !== false) {
        echo "File is an image - " . $check["mime"] . ".";
        $uploadOk = 1;
    } else {
        echo "File is not an image.";
        $uploadOk = 0;
    }
}
// Check if file already exists
if (file_exists($target_file)) {
    echo "Sorry, file already exists.";
    $uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType !="jpeg" && $imageFileType != "gif" ) {
    echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
    $uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
    echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
        echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
    } else {
        echo "Sorry, there was an error uploading your file.";
    }
}
?>

I already created a folder /var/www/uploads/ When trying to upload a 3KB jpeg i get this output:

File is an image - image/jpeg.
Sorry, there was an error uploading your file.
Array ( [fileToUpload] => Array ( [name] => Test Bild Website Upload.jpg [type] => image/jpeg [tmp_name] => /tmp/phpyxW0TX [error] => 0 [size] => 2999 ) )

I'm beginner in php and got really no idea what the problem is. Maybe someone out there can help me with this. :)

what are your permissions on your " /var/www/uploads/" folder, it will need to be owned by, or writable by your webserver user, most commonly www-data or apache — Tobias Hagenbeek
– Tobias Hagenbeek, Commented Aug 5, 2015 at 16:10
Make sure the permission for ` /var/www/uploads/` are set to 755 — Mr.Web
– Mr.Web, Commented Aug 5, 2015 at 16:11
Your move_uploaded_file function is returning false. This happens when the file is not a valid upload file OR when the file is a valid upload file, but cannot be moved for some reason. Check your permissions for the folder you are uploading to. Maybe you need to ensure you have read write access. — Reece Kenney
– Reece Kenney, Commented Aug 5, 2015 at 16:11
Where can i change the permissions of the folder? The server is running on Debian 7. Edit: Just found it on Filezilla. But the problem is still there. — HennoTM
– HennoTM, Commented Aug 5, 2015 at 16:17
have you got Filezilla ? just right click on the folder and choose permissions then type 755 — Iatrarchy
– Iatrarchy, Commented Aug 5, 2015 at 16:23

JasonJensenDev · Accepted Answer · 2015-08-05 16:36:39Z

3

Check to see if you can upload the file at all by executing this at the command line:

chmod -R 777 /var/www/uploads/
Then try to upload something. If that works, you know it was a permissions issue. But you don't want to leave the uploads folder at 777 permission (which give access to everyone)
If it was a permissions issue, here is the way I like to do permissions:

chown [your username]:www-data -R /var/www/uploads/

chmod -R 775 /var/www/uploads/

This changes the group assignment of the folder to www-data, which is typically what apache runs as on a Ubuntu linux server.

answered Aug 5, 2015 at 16:36

JasonJensenDev

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