If you want PHP to treat $_GET['select2'] as an array of options just add square brackets to the name of the select element like this: <select name="select2[]" multiple …
Then you can acces the array in your PHP script
<?php
header("Content-Type: text/plain");
foreach ($_GET['select2'] as $selectedOption)
echo $selectedOption."
";
$_GET may be substituted by $_POST depending on the <form method="…" value.
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
