我正在使用一个长轮询脚本，如果我附加任何文本进行测试，该脚本可以很好地工作。现在我想显示 user.php 从数据 update.php 收集的长轮询结果。我在 user.php 页面使用了我的轮询脚本。
在这里，如果我使用如下的“测试轮询”，它的效果很好
$("#updatepost").append("test polling");
但我想在此处附加我的 update.php 文件的 echo
我的完整代码
在我的 user.php 中
<script>
function addmsg(type, msg){
$("#updatepost").append("test polling");
}
function waitForMsg(){
/* This requests the url "msgsrv.php"
When it complete (or errors)*/
$.ajax({
type: "GET",
url: "update.php",
async: true, /* If set to non-async, browser shows page as "Loading.."*/
cache: false,
timeout:50000, /* Timeout in ms */
success: function(data){ /* called when request to barge.php completes */
addmsg(".upbox1", data); /* Add response to a .msg div (with the "new" class)*/
setTimeout(
waitForMsg, /* Request next message */
1000 /* ..after 1 seconds */
);
},
error: function(XMLHttpRequest, textStatus, errorThrown){
addmsg("error", textStatus + " (" + errorThrown + ")");
setTimeout(
waitForMsg, /* Try again after.. */
15000); /* milliseconds (15seconds) */
}
});
}
$(document).ready(function () {
waitForMsg(); /* Start the inital request */
});
</script>
</head>
<body>
<div id="updatepost">
</div>
在我的 update.php 中
$u = mysqli_query($dbh,"SELECT * FROM updateside WHERE `parent_id`='".$parent."' AND `created` > '".$timestamp."' ORDER BY created DESC") or die(mysqli_error($dbh));
while ($row = mysqli_fetch_array($u)) {
$parent_id = $row['parent_id'];
$to_id = $row['to_id'];
$sub = $row['sub'];
$detail = $row['detail'];
$time = $row['created'];
// I want to show this result at my polling
echo '<div class="upbox1" id="'.$parent_id.'"><div class="upbox2">'.$from_id.' '.$sub.' '.$to_pname.'</div>
<div class="upbox3">';
if ($detail=="") {echo '';}
else echo''.$detail.;
echo'</div></a><div class="upbox4">'.$time.'</div>
</div>';
}
