请问PHP怎么确定单选按钮组有一个被选了？

Question

<?php
if(isset($_POST['Submit']))
{ if(!isset($_POST['radiobutton']))
{
echo "<script>alert('请选择新闻板块！');location.href = 'manage_add_news_type.php';</script>" ;
}
else
{
if(isset($_POST['Submit']))
{
if($_POST['radiobutton'] == 'ID_1') header("location:manage_add1?number=1");
if($_POST['radiobutton'] == 'ID_2') header("location:manage_add1?number=2");
if($_POST['radiobutton'] == 'ID_3') header("location:manage_add2?number=3");
if($_POST['radiobutton'] == 'ID_4') header("location:manage_add2?number=4");
if($_POST['radiobutton'] == 'ID_5') header("location:manage_add2?number=5");
if($_POST['radiobutton'] == 'ID_6') header("location:manage_add2?number=6");
if($_POST['radiobutton'] == 'ID_7') header("location:manage_add3?number=7");
}
}
}
这样能判断么？

Answer 1

我是根据选定单选按钮组的一个来跳转到其他页面。
<title>后台用户密码管理</title>
  <table width="758" height="214" border="1">
    <tr>
      <td colspan="2"><div align="center">欢迎进入后台管理系统</div></td>
    </tr>
    <tr>
      <td width="248"><?php require_once("queue.php")?></td>
      <td width="494"><table width="467" height="44" border="1">
  <form id="form1" name="form1" ENCTYPE="multipart/form-data" method="post" action="">
        <tr>
          <td width="110">
            <label>
              <input type="radio" name="radiobutton" value="ID_1" />
              电子公告</label>
          
          </td>
          <td width="92">
            <label>
              <input type="radio" name="radiobutton" value="ID_2" />
              活动通知</label>
          
          </td>
          <td width="91">
            <label>
              <input type="radio" name="radiobutton" value="ID_3" />
              团情快讯</label>
          
          </td>
          <td width="146">
            <label>
              <input type="radio" name="radiobutton" value="ID_4" />
              围合风采</label>
          
          </td>
        </tr>
        <tr>
          <td>
            <label>
              <input type="radio" name="radiobutton" value="ID_5" />
              志愿者专栏</label>
          
          </td>
          <td>
            <label>
              <input type="radio" name="radiobutton" value="ID_6" />
              网上团校</label>
          
          </td>
          <td>
            <label>
              <input type="radio" name="radiobutton" value="ID_7" />
              校园导航</label>          </td>
          <td>&nbsp;</td>
        </tr>
</form>

      </table>
        <table width="200" border="1">

          <tr>
  <form method="post">
            <td><input name="Submit" type="submit" value = "确定"></td>
</form>
          </tr>
  
        </table>        <p>&nbsp;</p></td>
    </tr>
    <tr>
      <td height="47" colspan="2">&nbsp;</td>
    </tr>  </table>
  <p>&nbsp;</p>
  <tr>
    <td colspan="2">&nbsp;</td>
</tr><?php
if( !isset($_POST["radiobutton"]) && isset($_POST['Submit']))
{ 
echo "<script language=\"JavaScript\">alert(\"请选择新闻所属类别!\")</script>";
}
else
{
if(isset($_POST['Submit']))
{
if($_POST['radiobutton'] == 'ID_1') header("location:manage_add1?number=1");
if($_POST['radiobutton'] == 'ID_2') header("location:manage_add1?number=2");
if($_POST['radiobutton'] == 'ID_3') header("location:manage_add2?number=3");
if($_POST['radiobutton'] == 'ID_4') header("location:manage_add2?number=4");
if($_POST['radiobutton'] == 'ID_5') header("location:manage_add2?number=5");
if($_POST['radiobutton'] == 'ID_6') header("location:manage_add2?number=6");
if($_POST['radiobutton'] == 'ID_7') header("location:manage_add3?number=7");
}
}
?>

Answer 2

我是问PHP Delphi窗体模式编程你看下，呵呵