Codice PHP:
$nome_citta=$_POST['nuova_citta'];
$nome_citta = htmlspecialchars($nome_citta, ENT_QUOTES);
$nome_citta = addslashes($nome_citta);
$nome_citta=ucfirst($nome_citta);
$url="$nome_citta";
$url = str_replace ("'", "-", $url);
$url = str_replace('à','a', $url);
$url = str_replace ('è', 'e', $url);
$url = str_replace ('ì', 'i', $url);
$url = str_replace ('ò', 'o', $url);
$url = str_replace ('ù', 'u', $url);
$find = array(' ', '&', '\r\n', '\n', '/', '\\', '+');
$url = str_replace ($find, '-', $url);
$find = array(' ', 'é', 'è', 'ë', 'ê');
$url = str_replace ($find, 'e', $url);
$find = array(' ', 'ó', 'ò', 'ô', 'ö');
$url = str_replace ($find, 'o', $url);
$find = array(' ', 'á', 'à', 'â', 'ä');
$url = str_replace ($find, 'a', $url);
$url = str_replace ('agrave;', 'a', $url);
$find = array(' ', 'í', 'ì', 'î', 'ï', 'ì');
$url = str_replace ($find, 'i', $url);
$find = array(' ', 'ú', 'ù', 'û', 'ü');
$url = str_replace ($find, 'u', $url);
$find = array('/[^a-z0-9\-<>\.]/','/[\-]+/', '/<[^>]*>/');
$repl = array('', '-', '');
$url = preg_replace ($find, $repl, $url);
echo"$url
";
echo"$nome_citta
";