[SOLVED] Give Image Unique Name

[Ell20]

Hi,

 

I have an upload script which successfully uploads a picture and creates a thumbnail of the picture and stores the information in the database.

 

I have just used the file_exists function to give out an error message if a user uploads a photo which has the same name as another photo in the directory.

 

But what I would ideally like to do is to create some kind of unique image name so that is either unlikely or impossible to have 2 images with the same name.

 

I have had a look at various unique image naming scripts online but none of them seem to fit my code as I am using the copy function.

 

copy ($_FILES['imagefile']['tmp_name'], "/home/mysport/public_html/images/UserImgs/".$_FILES['imagefile']['name']) or die ("Could not copy");

 

Appreciate any help.

[papaface]

$_FILES['imagefile']['name'] = md5($_FILES['imagefile']['name'] . rand()) . $_FILES['imagefile']['name'];

That would make something unique. Very unlikely that it would be duplicated.

[Ell20]

Thanks its worked as I have echoed the name of the file but I also have an error:

 

An error occured in script /home/mysport/public_html/includes/functions.php on line 87: Undefined index: extension

 

Line 87 of functions.php:

 

if ( strtolower($info['extension']) == 'jpg' )

 

Thanks

[papaface]

Show us your entire code.

[cooldude832]

if you want a really unique name just use the database ID of the row you are inserting

[Ell20]

gallery.php
<?php
if (isset($_POST['submit'])) {

if ($_FILES['imagefile']['type'] == "image/jpeg"){
copy ($_FILES['imagefile']['tmp_name'], "/home/mysport/public_html/images/UserImgs/".$_FILES['imagefile']['name'] = md5($_FILES['imagefile']['name'] . rand()) . $_FILES['imagefile']['name']) or die ("Could not copy");
echo '<h3><center>Picture Uploaded!</center></h3>';

[papaface]

You're function needs to be ABOVE your code, its below at the moment.

[Ell20]

function.php is called in at the top of the page?

 

Thanks

[papaface]

I can't see it....

[Ell20]

Thats because I didnt add all the code in just the bits in question.

 

include_once ('includes/functions.php');

 

Thanks

[papaface]

Edit:

Where is the filename it is supposed to be getting the extension from?

[Ell20]

Fixed.

 

I simply moved where the thumbnails were being created to after the information was inserted into the database.

 

Thanks for your help.