PHP fileupload: keep both files if same name - php

Question

is there any pretty solution in PHP which allows me to expand filename with an auto-increment number if the filename already exists? I dont want to rename the uploaded files in some unreadable stuff. So i thought it would be nice like this: (all image files are allowed.)
Cover.png
Cover (1).png
Cover (2).png
…

Answer 1

First, let's separate extension and filename:
$file=pathinfo(<your file>);
For easier file check and appending, save filename into new variable:
$filename=$file['filename'];
Then, let's check if file already exists and save new filename until it doesn't:
$i=1;
while(file_exists($filename.".".$file['extension'])){
$filename=$file['filename']." ($i)";
$i++;
}
Here you go, you have a original file with your <append something> that doesn't exist yet.
EDIT:
Added auto increment number.

Answer 2

Got it:
if (preg_match('/(^.*?)+(?:\((\d+)\))?(\.(?:\w){0,3}$)/si', $FILE_NAME, $regs)) {
$filename = $regs[1];
$copies = (int)$regs[2];
$fileext = $regs[3];
$fullfile = $FILE_DIRECTORY.$FILE_NAME;
while(file_exists($fullfile) && !is_dir($fullfile))
{
$copies = $copies+1;
$FILE_NAME = $filename."(".$copies.")".$fileext;
$fullfile = $FILE_DIRECTORY.$FILE_NAME;
}
}
return $FILE_NAME;

Answer 3

You can use this function below to get unique name for uploading
function get_unique_file_name($path, $filename) {
$file_parts = explode(".", $filename);
$ext = array_pop($file_parts);
$name = implode(".", $file_parts);
$i = 1;
while (file_exists($path . $filename)) {
$filename = $name . '-' . ($i++) . '.' . $ext;
}
return $filename;
}
Use that function as
$path = __DIR__ . '/tmp/';
$fileInput = 'userfile';
$filename = $path .
get_unique_file_name($path, basename($_FILES[$fileInput]['name']));
if (move_uploaded_file($_FILES[$fileInput]['tmp_name'], $filename)) {
return $filename;
}
You can get working script here at github page

Answer 4

Use file_exists() function and rename() function to achieve what you're trying to do!