:::
2-1 上課範例：index.php
2-2 上課範例：save.php
<?php
echo $_POST['username']."您好！<br>";
echo "接下來的動作：{$_POST['op']}<br>";
echo "性別：{$_POST['sex']}<br>";
//echo "興趣：{$_POST['aaa'][0]}{$_POST['aaa'][1]}{$_POST['aaa'][2]}{$_POST['aaa'][3]}<br>";
echo "興趣：";
foreach($_POST['aaa'] as $v){
echo $v;
}
?>
