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 <script type="text/javascript">
  var selected = new Array();
    function inviteUser()
    {
         $(document.getElementById('invite')).click(function () 
         {
           getSelectedUsers();
           var movieTitle = document.getElementById('titleKeyword').value;
           var movieID = document.getElementById('movieMid').value;
           var location = document.getElementById('location').value;
           $.ajax({ 
           url: 'processinvitationrequest.php',
            data: {action: 'inviteUser', selectedUsers: selected, movieID: movieID,                  movieTitle: movieTitle, location: location},
           type: 'post',
       success: function(output) 
         {
           alert(output);
         }
      });
    });
   }
function getSelectedUsers() 
{
  $("input:checkbox[name=type]:checked").each(function() {
  selected.push($(this).val());
 });
 }
 </script>

我正在尝试将复选框字段中的所有值发送到 php 页面以查询我的数据库。这是我的问题： 1）我不知道通过数据参数发送 js 数组“选择”的语法是否正确。2）我如何从我的php中的ajax检索我的数组，我的代码是否正确。

我得到一个未定义的索引错误。

if (isset($_POST['action']) && !empty($_POST['action']))
{
$action = $_POST['action'];
switch($action) {
    case 'inviteUser' : inviteUser();break;
}   
function inviteUser()
{
$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) 
{
  $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}
foreach($_POST['selectedUsers'] as $selected)
{
    $notificationLink = "http://localhost/Movies/movienightout.php?movieID=".$_POST['movieID']."&movieTitle=".$_POST['movieTitle']."&location=".$_POST['location']."";
    $insertSQL = sprintf("INSERT INTO requestnightout (sender, recipient, notification) VALUES (%s, %s, %s)",
                   GetSQLValueString($_SESSION['MM_sessionEmail'], "text"),
                   GetSQLValueString($_POST['selectedUsers'], "text"),
                   GetSQLValueString($notificationLink, "text"));

    mysql_select_db($database_movie, $movie);
    $Result1 = mysql_query($insertSQL, $movie) or die(mysql_error());
    $urlplus="notification=Invitation Sent";
    header("Location: usersocialpage.php?".$urlplus."");
}
 }

输出：

array (size=4)
'action' => string 'inviteUser' (length=10)
'movieID' => string '9' (length=1)
'movieTitle' => string 'Star Wars: Episode III - Revenge of the Sith 3D' (length=47)
 'location' => string 'seee' (length=4)

( ! ) Notice: Undefined index: selectedUsers in C:\wamp\www\Movies\processinvitationrequest.php on line 54
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