$array = array("#FFFFFF","#FF0000","#66FF00","#0000FF");
if (isset($_POST["submit"]))
{
$bgCol = $_POST['nbgCol'];
$textCol = $_POST['ntextCol'];
$backgroundcolor = $array[$bgCol];
$textcolor = $array[$textCol];
}
else
{
$backgroundcolor = $array[0];
$textcolor = $array[0];
}
echo("<body bgcolor='$backgroundcolor' text='$textcolor'>");
?>
<h2>Quali colori preferisci?</h2>
<form action='<?php echo($_SERVER["PHP_SELF"]) ?>' method='post'>
Colore di sfondo: <select name='nbgCol'>
<option value="1">rosso</option>
<option value="2">verde</option>
<option value="3">blu</option>
</select>
Colore del testo: <select name='ntextCol'>
<option value="1">rosso</option>
<option value="2">verde</option>
<option value="3">blu</option>
</select>
<input type='submit' name='submit'>
</form>