将会话变量从一个页面传递到另一个

Question

我有一个php页面，它是一种带有3个下拉部分的子表单，它必须在您单击按钮时从下拉列表中选择。形式如下：

<div class="statsValPlate"> 
      <label>Main Score</label> 
      <select name="scoreSelect"> 
       <option value="301">301</option> 
       <option value="501">501</option> 
       <option value="701">701</option> 
       <option value="1001">1001</option> 
      </select> 
     </div> 
     <div class="statsValPlate"> 
      <label>Legs Format</label> 
      <select name="legSelect"> 
       <option value="3">2 of 3</option> 
       <option value="5">3 of 5</option> 
       <option value="7">4 of 7</option> 
       <option value="9">5 of 9</option> 
      </select> 
     </div> 
     <div class="statsValPlate"> 
      <label>Sets Format</label> 
      <select name="setSelect "> 
       <option value="3">2 of 3</option> 
       <option value="5">3 of 5</option> 
       <option value="7">4 of 7</option> 
       <option value="9">5 of 9</option> 
      </select> 
     </div> 
     <form method="get" action="scoreboard.php"> 
      <button id="submit" name ="submit" class="push_button red">Start Game</a><br> 
     </form> 

<?php 

     $_SESSION['gameScore'] = $_POST['scoreSelect']; 
     $_SESSION['legScore'] = $_POST['legSelect']; 
     $_SESSION['setScore'] = $_POST['setSelect']; 

?> 

，我想例如第一种形式的选择必须显示为一个标签值这里：

<label class="scorePlate" id="num1" value="<?php echo $_SESSION['gameScore']?>"> 
          <!--<?php echo $_SESSION["player1Score"]?>--> 
          <script> 
           document.write(new_score_player_1); 
          </script> 
         </label> 

但由于某种原因，这是行不通的。有什么问题

Answer 1

首先，开始会话 - session_start()。

二，把所有这些选择放在窗体内。当他们在表格之外时，所选的值将不会在表格提交中发送。

二，制作表格的方法POST，不是GET。

您的代码应该是这个样子：

<?php 
    session_start(); 

    if (isset($_POST['submit']) { 
     $_SESSION['gameScore'] = $_POST['scoreSelect']; 
     $_SESSION['legScore'] = $_POST['legSelect']; 
     $_SESSION['setScore'] = $_POST['setSelect']; 
    } 
?> 

<form method="POST" action="scoreboard.php"> 
    <div class="statsValPlate"> 
     <label>Main Score</label> 
     <select name="scoreSelect"> 
      <option value="301">301</option> 
      <option value="501">501</option> 
      <option value="701">701</option> 
      <option value="1001">1001</option> 
     </select> 
    </div> 
    <div class="statsValPlate"> 
     <label>Legs Format</label> 
     <select name="legSelect"> 
      <option value="3">2 of 3</option> 
      <option value="5">3 of 5</option> 
      <option value="7">4 of 7</option> 
      <option value="9">5 of 9</option> 
     </select> 
    </div> 
    <div class="statsValPlate"> 
     <label>Sets Format</label> 
     <select name="setSelect "> 
      <option value="3">2 of 3</option> 
      <option value="5">3 of 5</option> 
      <option value="7">4 of 7</option> 
      <option value="9">5 of 9</option> 
     </select> 
    </div> 

    <button id="submit" name ="submit" class="push_button red">Start Game</a><br> 
</form> 

而另一个页面上：

<?php 
    session_start(); 
?> 
<label class="scorePlate" id="num1" value="<?php echo $_SESSION['gameScore']; ?>"> 
    <!--<?php echo $_SESSION["player1Score"]?>--> 
    <script> 
     document.write(new_score_player_1); 
    </script> 
</label>