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[英]Using gettext with Javascript from PHP via XMLHttpRequest
[英]how to correctly handle object XMLHttpRequest in javascript from PHP via refreshDiv
當涉及到Javascript時,我不知道我在做什么,只是嘗試和錯誤方法。 到目前為止,我一直在嘗試着對AJAX和Javascript進行研究,因此請指出正確的方向。 基本上,我需要用PHP =>數據庫生成的數據每隔5s刷新一次DIV,在頁面的首次加載時,一切都很好,因為它直接從PHP獲取數據,但是當Javascript啟動inn時,我得到的只是[object XMLHttpRequest] in DIV內容的位置;
的HTML
<script type="text/javascript"></script>
<script>
window.setInterval("refreshDiv()", 5000);
function refreshDiv(){
var request = new XMLHttpRequest();
request.onreadystatechange = function() {
if (request.readyState == 4 && request.status == 200) {
console.log(request.responseText);
}
}
request.open('GET', 'http://www.mysite.com/getuserinfo.php', true);
request.send();
document.getElementById("usinfo").innerHTML=request;
}
</script>
</head>
<body>
<div id="page">
然后是DIV
<div id="usinfo" class="wrap">
<?php include("getuserinfo.php"); ?>
</div>
PHP如下所示:
require_once('../mysqli_connect.php');
$userid = 1000042;
$us_credit = 0 ;
$us_prof_view = 0 ;
$us_new_msg = 0 ;
//Get $us_credit , $us_prof_view , $us_new_msg
$q="SELECT ac_ballance, prof_views, COUNT (msg_id) AS messages FROM user_details INNER JOIN com_msg ON us_name = msg_to WHERE user_id =".$userid." AND msg_new =1";
$r = mysqli_query($dbc,$q);
if(mysqli_num_rows($r)== 1) {
$us_data = mysqli_fetch_array($r,MYSQLI_ASSOC);
$us_credit = $us_data['ac_ballance'];
$us_prof_view = $us_data['prof_views'];
$us_new_msg = $us_data['messages'];
}
mysqli_free_result($r); #not needed
?>
<p class="whtxt">Your Credits :
<?php echo $us_credit ; ?>
Profile views :
<?php echo $us_prof_view ; ?>
<a class="whtxt" href="http://www.mysite.com/inbox">New Messages :
<?php echo $us_new_msg ; ?>
</a>
</p>
提前致謝
更改
if (request.readyState == 4 && request.status == 200) {
console.log(request.responseText);
}
至
if (request.readyState == 4 && request.status == 200) {
document.getElementById("usinfo").innerHTML=request.responseText;
}
該if語句等待服務器成功返回響應,然后執行。 在您的情況下,它等待HTML接收,然后將其插入div。
您嘗試做的事情是錯誤的,原因有兩個:
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