Hi Noah

Thank you for reaching out to us.

I have forwarded this to our developers as they will be able to provide a more accurate answer. I will update you as soon as I hear back from them.

We appreciate your time and patience.

Hi Noah

Thank you for your patience, we really appreciate it.

You need to add one more hook  to filter that URL of PHP file.

In file wp-content/plugins/wpdatatables/source/class.wpdatatable.php: around line 1875

you will find this

case 'serialized':

and under it add this

$url =  apply_filters('wpdatatables_filter_url_php_array', $tableData->content, $this->_wpId);

so it looks like this

In hook you will do something like this

function test ($url,$id) {
// all data from current user
// you can fetch only what you need
$userData = wp_get_current_user()->data;   if(isset($userData)){       $url .= '?' . http_build_query($userData);    }
return $url;
}
add_filter('wpdatatables_filter_url_php_array', 'test', 2 , 10

In the PHP file, you will use $_GET method to take the values from the URL which is filtered with the hook

// you can check then for ID or user_login or user_pass or user_nicename or user_email ...
if(isset($_GET['user_login'])){      //do somthing
}

Do let us know if you need any further assistance.