how to upload a file to multiple folder in php

I want to upload a file into multiple folders but only works in move_uploaded_file code. the copy code is not working. Please help.

  if (isset($_FILES['attachment']['name']) && $_FILES['attachment']['name'] != "") {
    $file = "attachment1/" . basename($_FILES['attachment']['name']);
    $file3 = "attachment2/" . basename($_FILES['attachment']['name']);
    if(move_uploaded_file($_FILES['attachment']['tmp_name'], $file)){
        copy($file,$file3);
        echo '<script type="text/javascript"> alert("move success") </script>';
        

    }
    else echo '<script type="text/javascript"> alert("move NOT success") </script>';
   

  }