robinzimmer1989

Hi Fabian, I’ve found a nice hook to change the filename, but I have problems to check for a AF form submission as you suggested. For now I just check if the file gets uploaded via the frontend or backend by inspecting the url.

Do you have a more elegant solution for this?

<?php
function renameUploadedFiles($filename) {

    $info = pathinfo($filename);
    $ext  = empty($info['extension']) ? '' : '.' . $info['extension'];

    $url = 'http://' . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
    
    if (strpos($url, 'wp-admin') == false):
        $filename = bin2hex(openssl_random_pseudo_bytes(16));
    endif;

    return $filename . $ext;
}
add_filter('sanitize_file_name', 'renameUploadedFiles', 10);
?>

Hi Fabian, okay I guess I found the error:
I changed the return value of the acf field from “File URL” to “File Array” and now the link is showing up in the email.

Is there a way to change the filename during the upload process with a hook?

Best regards
Robin