ho ritrovato questa vecchia funzione


codice:
function filter_html($what){	 

	 $what = str_replace( "&#"           , "(^)-(^)"        , $what ); 
	 $what = str_replace( "&"            , "&"         , $what );
	 $what = str_replace( ">"            , ">"          , $what );
	 $what = str_replace( "<"            , "&lt;"          , $what );
	 $what = str_replace( "\""           , "&quot;"        , $what );
	 $what = str_replace( "!"            , "&#33;"         , $what );
	 $what = str_replace( "'"            , "&#39;"         , $what ); 
	 $what = str_replace( "(^)-(^)"       , "&#"            , $what ); 
	 $what = str_replace("`"             ,""               , $what );
	 $what = ereg_replace("\n"        , "
"          , $what ); 
	 $what = ereg_replace("\r"        , ""              , $what ); 	 
   $what = ereg_replace("à"            , "&agrave;"      , $what ); 
   $what = ereg_replace("Ã"            , "&agrave;"      , $what );
   $what = ereg_replace("è"            , "&egrave;"      , $what ); 
   $what = ereg_replace("é"            , "&eacute;"      , $what ); 
   $what = ereg_replace("ì"            , "&igrave;"      , $what ); 
   $what = ereg_replace("ò"            , "&ograve;"      , $what ); 
   $what = ereg_replace("ù"            , "&ugrave;"      , $what ); 
   $what = ereg_replace("€"            , "&euro;"      , $what ); 
   $what = ereg_replace("°"            , "&deg;"      , $what ); 
   $what = ereg_replace("§"            , "&sect;"      , $what ); 
	 
	 return $what;	 	 
}