我有一个注册过程，其中涉及提交两个表格。问题在于未提交第一个表单。另外，我需要一种方法来关联这两个表单，因为两者的信息都插入到同一个表行中，我认为这可以通过获取前一个表行 ID 来完成。
它应该像这样工作：首先，用户必须在搜索栏中搜索一个项目。然后显示匹配项，每个匹配项旁边都有单选按钮，底部有一个提交按钮。提交后，表单数据（这是他们用收音机检查的搜索结果）进入数据库表“用户”。'users' 表包含 id、username、password 和 radio 的行。
单选选项提交到单选。这也会创建一个 id，它会自动递增。这是第一种形式。一旦选择了单选选项并且数据在表格行中，用户必须填写第二个表格，该表格要求提供电子邮件和密码，该表格将提交到单选选项所在的同一行中。
当我完成此过程时，电子邮件（称为表中的用户名）和密码与 id 一起出现在表中，但单选始终为空白。不知道为什么没有提交单选选项。也不确定我是否需要一种方法来关联表格。我是这方面的初学者，所以请尽量使答案易于理解。在此先感谢，代码如下：
<?php
//This code runs if the form has been submitted
if (isset($_POST['submit'])) {
//This makes sure they did not leave any fields blank
if (!$_POST['username'] | !$_POST['pass'] | !$_POST['pass2'] ) {
die('You did not complete all of the required fields');
}
// checks if the username is in use
if (!get_magic_quotes_gpc()) {
$_POST['username'] = addslashes($_POST['username']);
}
$usercheck = $_POST['username'];
$check = mysql_query("SELECT username FROM users WHERE username = '$usercheck'")
or die(mysql_error());
$check2 = mysql_num_rows($check);
//if the name exists it gives an error
if ($check2 != 0) {
die('The email '.$_POST['username'].' is already in use.');
}
// this makes sure both passwords entered match
if ($_POST['pass'] != $_POST['pass2']) {
die('Your passwords did not match. ');
}
// here we encrypt the password and add slashes if needed
$_POST['pass'] = md5($_POST['pass']);
if (!get_magic_quotes_gpc()) {
$_POST['pass'] = addslashes($_POST['pass']);
$_POST['username'] = addslashes($_POST['username']);
}
// now we insert it into the database
$insert = "INSERT INTO users (username, password, radio)
VALUES ('".$_POST['username']."', '".$_POST['pass']."', '".$_POST['radio']."')";
$add_member = mysql_query($insert);
?>
<h2><font color="red">Registered</font></h2>
<p>Thank you, you have registered - you may now login</a>.</p>
<?php
}
else
{
?>
<font color = #000000><h1>Sign Up</h1></font>
<?php
// Search Engine
// Only execute when button is pressed
if (isset($_POST['keyword'])) {
// Filter
$keyword = trim ($_POST['keyword']);
// Select statement
$search = "SELECT * FROM tbl_name WHERE cause_name LIKE '%$keyword%'";
// Display
$result = mysql_query($search) or die('That query returned no results');
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<?php
while($result_arr = mysql_fetch_array( $result ))
{
?>
// Radio button
<input type="radio" name="radio">
<?php
echo $result_arr['cause_name'];
echo " ";
echo "<br>";
}
?>
<input type="submit" name="radio_submit" value="Select Item">
</form>
<?php
$anymatches=mysql_num_rows($result);
if ($anymatches == 0)
{
echo "We don't seem to have that cause. You may add a cause by filling out a short <a href='add.php'>form</a>.<br><br>";
}
}
?>
<!--Sign Up Form-->
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" name="sign_up_form">
<input type="text" name="keyword" placeholder="Search" onFocus="this.select();" onMouseUp="return false;">
<input type="submit" name="search" value="Search">
<br />
<br />
<input type="email" name="username" maxlength="250" placeholder="Your email" onFocus="this.select();" onMouseUp="return false;">
<input type="password" name="pass" maxlength="50" placeholder="Password" onFocus="this.select();" onMouseUp="return false;">
<input type="password" name="pass2" maxlength="50" placeholder="Re-type Password" onFocus="this.select();" onMouseUp="return false;">
<br />
<input type="submit" name="submit" value="Sign Up">
</form>
<?php
}
?>