php表单无法获取值,该如何解决

php表单无法获取值

<p><span class="top-head">密码：</span>
    <label for="password"></label>
  <input name="password" type="text" id="password" value="请输入密码">
  </p>
  <p> </p>
  <p> </p>
<p><span class="top-head">密码：</span>
                      <label for="password2"></label>
                      <input name="password2" type="text" id="password2" value="请再次密码">
                    </p>
<p> </p>
<p> </p>
  <p><span class="top-head">邮箱：</span>
                    <label for="password3"></label>
                    <input name="password3" type="text" id="password3" value="请输入您的邮箱">
                    </p>
<p> </p>
<p> </p>
<p><span class="top-head">授权码：</span>
                      <label for="password4"></label>
                      <input name="password4" type="text" id="password4" value="请输入授权码">
                    </p>
<p> </p>
<p> </p>
  <hr>
<p>
  <script type="text/javascript" src="js/fliplightbox.min.js"></script>
      <script type="text/javascript">$('body').flipLightBox()</script>
</p>
<p> </p>
<form name="form2" method="post" action="login.php">
<input type="submit" name="ann03" id="ann03" value="提交">

  </form>
                   <?php
   if(isset($_POST['ann03']))
   {

   $username = $_POST['password'];
   echo "您输入的用户名是：".$username;

   }
?>

无法打印出密码
------解决思路----------------------
form表单应该包住所有input输入<form name="form2" method="post" action="login.php">提前到input开始之前的地方即可
------解决思路----------------------
用post接受的，可是没看到password的表单，代码没贴全？？
------解决思路----------------------
改为这样就可以了。



<form name="form2" method="post" action="login.php">

<p><span class="top-head">密 码 ：</span>

    <label for="password"></label>

  <input name="password" type="text" id="password" value="请输入密码">

  </p>

  <p>&nbsp;</p>

  <p>&nbsp;</p>

<p><span class="top-head">密 码 ：</span>

                      <label for="password2"></label>

                      <input name="password2" type="text" id="password2" value="请再次密码">

                    </p>

<p>&nbsp;</p>

<p>&nbsp;</p>

  <p><span class="top-head">邮 箱 ：</span>

                    <label for="password3"></label>

                    <input name="password3" type="text" id="password3" value="请输入您的邮箱">

                    </p>

<p>&nbsp;</p>

<p>&nbsp;</p>

<p><span class="top-head">授权码：</span>

                      <label for="password4"></label>

                      <input name="password4" type="text" id="password4" value="请输入授权码">

                    </p>

<p>&nbsp;</p>

<p>&nbsp;</p>

  <hr>

<p>

  <script type="text/javascript" src="js/fliplightbox.min.js"></script>

      <script type="text/javascript">$('body').flipLightBox()</script>

</p>

<p>&nbsp;</p>


<input type="submit" name="ann03" id="ann03" value="提 交">

                    

  </form>

                   <?php 

  	 	if(isset($_POST['ann03']))

   { 

      

   $username = $_POST['password'];

   echo "您输入的用户名是：".$username;

  

   }

?>

------解决思路----------------------
form都没有算啥表单啊

php表单无法获取值,该如何解决

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