1 <form name="myform" action="" method="post">
2 性别:
3 <input type="radio" name="sex" value="男" checked />男
4 <input name="sex" type="radio" value="女" />女
5 <input type="submit" name="submit" value="提交" />
6 </form>

1 <?php
2 echo "您的选择是：";
3 echo $_POST["sex"];
4 ?>

1 <form action="" name="form1" method="post">
2 您喜欢的数字：
3 <input type="checkbox" name="mrbook[]" value="1" />1
4 <input type="checkbox" name="mrbook[]" value="2" />2
5 <input type="checkbox" name="mrbook[]" value="3" />3
6 <input type="checkbox" name="mrbook[]" value="4" />4
7 <input type="submit" name="submit" value="提交" />
8 </form>

 1 <?php
 2 if($_POST['mrbook']!=null)
 3 {
 4        echo "您选择的数字是：";
 5        for($i=0;$i<count($_POST['mrbook']);$i++)
 6        {
 7               echo $_POST['mrbook'][$i]."&nbsp;&nbsp;";
 8        }
 9 }
10 ?>