" and ' giving problems

Hi, When a user wants to add a comment on my site and uses either " or ', and when it gets printed out, comes out as /" or /', either to the web page or on a form to alter. The only "treatment" i give it after its submitted on the form is: $comentarioc = str_replace("\r\n", "\n", $comentarioc); $comentarioc = str_replace("\r", "\n", $comentarioc); Is there a way to solve this? So it can accept both " and ', and be able to alter/print it with no problem? Thanks. Pag