Create Random Folders - PHP

Question

I have developed an API integration, It contains multiple image/file uploads. There are name conflicts if multiple users uploads file with the same name.

I\'ve plan

Answer 1

I guess that it is best to have a function that tries creating random folders (and verifying if it is successful) until it succeeds.

This one has no race conditions nor is it depending on faith in uniqid() providing a name that has not already been used as a name in the tempdir.

function tempdir() {
    $name = uniqid();
    $dir = sys_get_temp_dir() . '/' . $name;
    if(!file_exists($dir)) {
        if(mkdir($dir) === true) {
            return $dir;
        }
    }
    return tempdir();
}