append an icrementing number to file upload

russmc

Hello All

I need to add or append an icrementing number to image file uploads file name so that a file will never be overwritten by duplicate file name.

any suggestions

Thanks

azkworld

$fileVersion = 0;

$fileName = $originalFileName;

while(file_exists($fileName))
$fileName = $fileName . $fileVersion++;

// now copy uploaded into $fileName
// first version is original name
// next version(s) are original.ext1, original.ext2, etc.

russmc

How to make that work with this

if ($action == "addproduct") {
// IMAGE UPLOADER
$uploaddir = DIR_FS_CATALOG . DIR_WS_IMAGES;

if (($file == "none")||($file=="")) {
    $file_name = "";
}
else {
    copy($file, $uploaddir.$file_name);
    unlink($file);
}

devinemke

Another thougt is to append or prepend a timestamp to uploaded files. I run a web site where people can upload short story submissions to a literary magazine and to ensure that two people with the same filename do overwrite each other i have some code that prepends a unix timestamp to each file (ie. 1033102158_My Story.doc). This ensures unique file names and also provides an easy way to figure out when the file was uploaded.

russmc

this is my existing uploader

if ($action == "addproduct") {
// IMAGE UPLOADER
$uploaddir = DIR_FS_CATALOG . DIR_WS_IMAGES;

if (($file == "none")||($file=="")) {
    $file_name = "";
}
else {
    copy($file, $uploaddir.$file_name);
    unlink($file);
}

html
form
<td><input type="file" size=40 name="file"></td><br>
/form
/html

you get the idea