little problem with File Helper.

[eluser]1mr3yn[/eluser]
Good Day Developers,
Im currently developing a website that allowed a user to upload 1 image as his/her profile picture.

The Uploading stuff is ok, using 'File Uploading Class'.

Code:

$config = array (
      'file_name'     => $this->input->post('user_id'),
      'upload_path'   => './img/members',
      'allowed_types' => 'gif|jpg|png',
      'max_size'      => '100',
      'max_width'     => '1024',
      'max_height'    => '768',
      'overwrite'     => TRUE,
                );

by looking at the code, it's too obvious that that i did not store the image name in the database, instead renaming it, that is the same with the user_id of a specific user. And it works fine. But my problem is read and display that user image in his/her profile page.

I have a function the looks like this:

Code:

function getProfilePhoto($id)
    {  
       $image = img_url().'members/'.$id.".jpg";
        
      if ( !file_exists($image)){
         $swap = img_url().'members/selena.jpg';
         return "<img src="$image" />";
      }
      else {        
        return "<img src="$image" />";
     }    
   }

my problem is my 'file_exists' seems won't work and since im using

'allowed_types' => 'gif|jpg|png',

how will i know if that image is gif,png or jpg?

Thanks guys.