实现一个基于Ajax的调查程序

<html>
<head>
<title>投票</title>
<META http-equiv=Content-Language content=zh-cn>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<style type="text/css">

</style>
<?php
include_once("server1.server.php"); #servidor para XAJAX
$xajax->printJavascript();
?>

</head>
<body>

</div>

<?php

global $db;

$poll = $db->getRow("select * from TBL_POLL order by poll_id desc limit 1");
$poll_id = $poll["poll_id"];
$pollitems = $db->getAll("select * from TBL_POLLITEM where poll_id=$poll_id");
?>
<div id=poll class=poll>
<form id="pollForm" action="javascript:void(null);" onsubmit="onSubmit();">
   <?php echo $poll["title"]; ?><br>
   <?php for ($i = 0, $count = count($pollitems); $i < $count; $i++) { ?>
<input type="radio" style="background-color : #CCCCCC;" name="pollitem" value="<?php echo $pollitems[$i]['pollitem_id'] ?>"><?php echo $pollitems[$i]['content'] ?><br>
<?php } ?>
<input type="hidden" name="poll_id" value="<?php echo $poll_id; ?>">
<input type="submit" value="enter">
</form>
<script language=javascript>
    function onSubmit() {
      xajax_poll(xajax.getFormValues("pollForm"));
      document.getElementById('poll').style.display = 'none';
      document.getElementById('pollresult').style.display = 'block';
    }
</script>
</div>

</body>
</html>

服务器端

function poll($formData){
global $db;
$tmp="";
$objResponse = new xajaxResponse();

$poll_id = $formData['poll_id'];
$pollitem_id = $formData['pollitem'];

if($pollitem_id > 0 && $poll_id > 0) {
$db->query("update ".TBL_POLLITEM." set count=count+1 where pollitem_id = $pollitem_id");
}

$poll = $db->getRow("select * from TBL_POLL where poll_id = $poll_id");
$pollitems = $db->getAll("select * from TBL_POLLITEM where poll_id=$poll_id");

$tmp .="<div align=center>".$poll["title"]."</div><br>";
    for ($i = 0, $count = count($pollitems); $i < $count; $i++) {
      $tmp .="<div align=left>".$pollitems[$i]['content'].": ".$pollitems[$i]['count']."</div>";

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实现一个基于Ajax的调查程序

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