จะเขียนโปรแกรมที่เกี่ยวกับการใช้ php เป็นคล้ายๆ robots ไปดูด content จากเว็บอื่นๆมา analysis ทีนี้เลยต้องศึกษาเกี่ยวกับการใช้ Ajax ค่อยๆมาดูกันดีกว่า จากคนที่เขียน Ajax ไม่เป็นจะทำได้ไหม ฮ่าๆๆ

1. Kërkoj për përdorimin e internetit për Fjalëkyç. “Ajax Tutorial Chat” Google është në këtë ครับ web. ajaxprojects.com

2. Shkarko mostër fotografi kam të instaluar në kompjuterin tim vet>. Shkarko kodin burim - 7 Kb

3. Për të parë ndonjëherë shkruaj. Mund të ketë disa i rastësishëm. Disa hap i rëndësishëm tuaj.

JavaScript

//Gets the browser specific XmlHttpRequest Object
function getXmlHttpRequestObject() {
if (window.XMLHttpRequest) {
return new XMLHttpRequest();
} else if(window.ActiveXObject) {
return new ActiveXObject("Microsoft.XMLHTTP");
} else {
document.getElementById('p_status').innerHTML 'Status: Cound not create XmlHttpRequest Object.' +
'Consider upgrading your browser.';
}
}


เค้าบอกว่า function นี้จะตรวจดูว่า Browser เป็นยี่ห้อใด แล้วใช้ Object ที่ใช้เชื่อม XMLHttpRequest ตัวไหนนั้นเอง จริงๆแล้วมี IE เจ้าเดียวแหละครับที่แปลกกว่าชาวบ้านเขา คือใช้ ActiveXObject(”Microsoft.XMLHTTP”)

var sendReq = getXmlHttpRequestObject();
var receiveReq = getXmlHttpRequestObject();
var lastMessage = 0;
var mTimer;


Krijo variablave të marrë programin e fundit., Merre deri në një Tekst i thjeshtë ose XML standard në këtë kohë, por do të trashëgojnë një XML.

//Gets the current messages from the server
function getChatText() {
if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
receiveReq.open("GET", 'getChat.php?chat=1&last=' + lastMessage, true);
receiveReq.onreadystatechange = handleReceiveChat;
receiveReq.send(null);
}
}


funksion trashëguar tekst të kihet duke dërguar deri në lastmessage për të parë se bazës së të dhënave është më shumë se kjo? update.? Nëse do të ketë shumë të reja për chat tekst.

Tags: AJAX, chat tutorial, google, microsoft, re activexobject, robots, kod burim, xmlhttprequest objekt