Renew server time <?php echo microtime();?> in pure JavaScript?

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Renew server time <?php echo microtime();?> in pure JavaScript?

xcislav

Ayjax working version:
<?php echo microtime();?>

Sup3rkirby

What is the question?

Are you asking if this example can be done with just javascript (no PHP and AJAX)? If that's the case then the answer is simply no. Javascript is client-side and thus can never get server information without the use of AJAX (combined with a server-side language, such as PHP).

xcislav

No jQuery. Don't know it's ajax or ajax is apart and require no inclusions of needless code.

If ajax is what I write with no superfluous code insertions - so let it be. But no jQuery - I see how mush of generated .js file occupy.

Sup3rkirby

Okay, so if I understand this correctly you are wanting to do this same thing but only using standard javascript and no jQuery (because you don't need all of the extra jQuery code).

This should do the same thing, but with no extra files (jQuery) included.

<!doctype html>
<html>
<head>
	<title>Javascript/AJAX Microtime Update</title>
	<script>
		function update() {
			if(window.XMLHttpRequest) { var $oAjax = new XMLHttpRequest();
			} else { var $oAjax = new ActiveXObject("Microsoft.XMLHTTP"); }
			if($oAjax !== null && $oAjax !== undefined) {
				$oAjax.onreadystatechange = function() {
					if($oAjax.readyState == 4) document.body.innerHTML = $oAjax.responseText
				}
				$oAjax.open("GET", "/eho.php", true);
				$oAjax.send(null);
			}
		}
		window.onload = function(){
			update();
			setInterval(function(){ update() }, 1);
		};
	</script>
</head>
<body>

</body>
</html>

ShrineDesigns

no needless code

if(typeof XMLHttpRequest === "undefined"){
	XMLHttpRequest = function(){
		try {
			return new ActiveXObject("Msxml2.XMLHTTP.6.0");
		}catch(e){
		}
		try{
			return new ActiveXObject("Msxml2.XMLHTTP.3.0");
		}catch(e){
		}
		try{
			return new ActiveXObject("Microsoft.XMLHTTP");
		}catch(e){
		}
	};
}
function request(url, callbackFn){
	var http, ID;

try{
	http = new XMLHttpRequest();
}catch(e){
	return false;
}
http.onreadystatechange = function(){
	if(http.readyState == 4){
		clearTimeout(ID);
		callbackFn(http);
	}
};
ID = setTimeout(function(){
	if(http.readyState != 4){
		http.abort();
		callbackFn({
			responseText: null,
			status: 408,
			statusText: "Request Timeout"
		});
	}
}, 5000);
http.open("GET", url, true);
http.send();
return true;
}
function update(){
	var r = request('/eho.php', null, function(http){
		if(http.status == 200)
			document.body.innerHTML = http.responseText;
	});

if(!r){
	//alert('XMLHttpRequest is not accessible.');
}else{
	uID = setTimeout($fn, 1);
}
}
var $fn = function(){
	update();
}, uID;
update();

xcislav

Sup3rkirby;1325325 wrote:
..

Only your code works.

I was also provided with non-working code. They say "enough for browsers comtemporary (современны&#1093"

01 var request = new XMLHttpRequest,
02 textNode = document.body.appendChild(document.createTextNode(""));
03
04 function update() {
05 request.open("GET", "/eho.php");
06 request.send();
07 }
08 request.onload = function () {
09 textNode.nodeValue = request.responseText;
10 update();
11 };
12
13 update();

Sup3rkirby,

It will be a good starting point of starting ajax from

window.XMLHttpRequest
new XMLHttpRequest()(
"
Microsoft.XMLHTTP
")
if !== null && undefined
onreadystatechange = function() { if(
readyState == 4
document.body.innerHTML
.respondeText
.open("GET", "/eho.php", true)
;
.send(null);
window.onload
setInterval

working code.

Now I sent all queries (ahowever lots of water in googling and smth ..dunno).

Thank you.
The point is solved.