changing file name of single upload file before saving to server folder

[waubain]

I am using Quform to upload a pdf file to a folder on the server. All that is working, but I now need to change the name of the file prior to saving to the server folder. I am having difficulty in how to achieve this in the process.php file. I am placing the code in the Custom code section #1.
Here is my current attempt:

        // Custom code section #1 - see documentation for examples
               
        $temp = explode(".", $_FILES["file"]["name"]);
        $acronym = $form->getValue('ho_acronym');
        $hotype = $form->getValue('ho_type');
        $newfilename = $acronym . $hotype . '.' . end($temp);

        // End custom code section #1

   //Process single upload field
                        if ($file['error'] === UPLOAD_ERR_OK) {
                            $fileData = array(
                                'path' => $file['tmp_name'],
                                //'filename' => Quform_Element_File::filterFilename($file['name']),
                                'filename' => $newfilename,
                                'type' => $file['type'],
                                'size' => $file['size']

Am I on rhe right tract?

[waubain]

I got this working. The file name retained the .pdf without adding it back, so I was getting an additional period at the end.

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