我有一个php页面，它是一种具有3个下拉部分的子表单，当您单击按钮时，必须发送下拉列表中的选择。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'];
?>
例如，我希望第一种形式的选择必须在这里显示为标签值：
<label class="scorePlate" id="num1" value="<?php echo $_SESSION['gameScore']?>">
<!--<?php echo $_SESSION["player1Score"]?>-->
<script>
document.write(new_score_player_1);
</script>
</label>
但由于某种原因，它不起作用。有什么问题
首先，启动会话-session_start（）。
第二，将所有选择放入表单中。当它们在表单之外时，所选的值将不会在表单提交时发送。
其次，使表单的方法POST，而不是GET。
你的代码应该是这样的：
<?php
session_start();
if (isset($_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>
在另一页：
<?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>