array_map() problems

I have the following 2 functions which I intend to clean GPC off slashes if magic_quotes_gpc is turned on. function StripGpcSlashes() { if (get_magic_quotes_gpc()) {

     $_POST = array_map('StripSlashesDeep', $_POST);
     $_GET = array_map('StripSlashesDeep', $_GET);
     $_COOKIE = array_map('StripSlashesDeep', $_COOKIE);
   }  }

function StripSlashesDeep($value) { $value = is_array($value)

     ?  array_map('StripSlashesDeep', $value)
     :  stripslashes($value);

return $value; } However when I call $this->StripGpcSlashes(); from within a class, I get the following error: */ array_map(): The first argument, 'StripSlashesDeep', should be either NULL or a valid callback /* Anyone have suggestions as to what I am doing wrong ? cheers, Jeffery