why codeigniter doesn't accept accented characters in cart class ?

I fixed the "error" using the convert_accented_characters function, for example:

PHP Code:

$insert = array(
  'id'    => $id,
  'qty'   => $quantity,
  'price' => $product->price,
  'name'  => convert_accented_characters($product->name),
); 


But I wanted to know why codeigniter doesn't accept these characters. It is for safety? or a compatibility issue?

Better stop using the cart class anyway, it is soon to be deprecated.

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