metodo $_POST che invia un unico valore

[filippo.toso]

Studiati questo codice:

<form method="post">
  <select multiple="multiple" name="good[]">
    <option selected="selected">1</option>
    <option selected="selected">2</option>
    <option>3</option>
  </select>
  <select multiple="multiple" name="bad">
    <option selected="selected">1</option>
    <option selected="selected">2</option>
    <option>3</option>
  </select>
  <input type="submit" />
</form>
<pre><?php print_r($_POST); ?></pre>