beveiliging contactformulier

<?php
//
function prep_char($string){
  $string=addslashes($string);
  $string=htmlentities($string);
  $string = strip_tags($string);

 return $string;
}
?>

<?php
//
function prep_char($string){
  $string=addslashes($string);
  $string=htmlentities($string);
  $string = strip_tags($string);
 
 return $string;
}
?>

<input type="hidden" name="spam">

<input type="hidden" name="spam">