php中$_POST得不到值

Question

<form action="xierushuju.php" method="post" target="_blank"><table id="table2"><tr><td><b>厂 区:</b></td><td>南区:<input type="radio" name="changqu" value ="南区" />  北区:<input type="radio" name="changqu" value ="北区" /></td></tr></table > //php代码<?phpvar_dump($_POST);$chan = $_POST['changqu'];echo $chan;?>//报错提示Notice: Undefined index: changqu in C:\wamp\www\baoquan\xierushuju.php on line 4

Answer 1

html代码:

    <form action="xierushuju.php" method="post" target="_blank">

        <table id="table2">

        <tr>

        <td><b>厂 区:</b></td>

        <td>

        南区:<input type="radio" name="changqu" value ="南区" />  

        北区:<input type="radio" name="changqu" value ="北区" />

        </td>

        </tr>

        </table>

        <button>提交</button>

    </form>

php代码:

<?php

header("content-type:text/html;charset=utf-8");

$chan = $_POST['changqu'];

echo $chan;

?>

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