PHP fileupload: keep both files if same name

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
…

using file_exists() function you can achieve this very simply — Mahesh.D
– Mahesh.D, Commented Dec 29, 2012 at 12:05
ya,you need to take care of further stuff,write simple algorithm first then implement it in coding,it makes easier to you — Mahesh.D
– Mahesh.D, Commented Dec 29, 2012 at 12:10
"simple algorithm" ? ja, basically i know what do you mean but ive no idea how to resolve that. :( — YeppThat'sMe
– YeppThat'sMe, Commented Dec 29, 2012 at 12:13

Kristjan O. · Accepted Answer · 2012-12-29 13:39:07Z

6

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.

edited Dec 29, 2012 at 13:39

answered Dec 29, 2012 at 12:20

Kristjan O.

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3 Comments

YeppThat'sMe Over a year ago

pretty easy!!! :) but the auto increment solution is better i think. But thanks!!!

Kristjan O. Over a year ago

@Salman A: In what way? I double checked and I don't see anything wrong.

Salman Arshad Over a year ago

I mean what does $filename." ($i)"; do? I don't see any assignment.

YeppThat'sMe · Accepted Answer · 2012-12-29 12:17:14Z

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;

answered Dec 29, 2012 at 12:17

YeppThat'sMe

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1 Comment

Salman Arshad Over a year ago

You could use pathinfo instead of regex; much simpler this way.

Tofeeq · Accepted Answer · 2019-03-27 18:08:21Z

0

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

answered Mar 27, 2019 at 18:08

Tofeeq

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Comments

PeeHaa · Accepted Answer · 2012-12-29 21:07:51Z

-2

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

edited Dec 29, 2012 at 21:07

PeeHaa

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answered Dec 29, 2012 at 12:08

ECode

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1 Comment

YeppThat'sMe Over a year ago

Do i need any regex for that? Sure i can check if the original filename already exist but what if i am trying to upload another Cover.png. How can i recognize how many are there already?

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