Reading data from updated JavaScript html
Is it possible to read the updated quotes in real time this site via actionscript3 without reloading the page all the time, which is heavy on the net.
In other words, is it possible to pass quotes directly to actionscript3 or eventually PHP from javascript?
If anyone has any suggestion on how to get these quotes in actionscript?
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Extending what Theo Said ... (I'm sure there is a much easier way to do this and I'll be frowned upon as a hack, but it works damnit)
I basically just extract the first two numbers under EUR / USD in red.
Here's a php script to host on your server called getContent.php
<?php
$handle = fopen("getVars.php", "r");
$contents = '';
while (!feof($handle)) {
$contents .= fread($handle, 8192);
}
$vars = explode("&", $contents);
$time = substr($vars[2], 5);
$difference = abs(date(s)-$time);
if($difference>5)
{
$handle = fopen("http://www.fxstreet.com/technical/currencies-glance/pair.aspx?id=EUR/USD", "r");
$contents = '';
while (!feof($handle)) {
$contents .= fread($handle, 8192);
}
$contents=trim($contents);
$pos1 = strpos($contents, 'lhtml_0" innerOnUpdate="att=BID" innerfilter="format_number">');
$str1 = substr($contents, $pos1, 100);
$cur1 = substr($str1, 61, 6);
$pos2 = strpos($contents, 'lhtml_1" innerOnUpdate="att=ASK" innerfilter="format_number">');
$str2 = substr($contents, $pos2, 100);
$cur2 = substr($str2, 61, 6);
$cachedPage = fopen("getVars.php", "w");
$varString = "cur1=$cur1&cur2=$cur2&time=".date(s);
fwrite($cachedPage,$varString);
fclose($cachedPage);
echo "cur1=$cur1&cur2=$cur2&cached=false";
}
else
{
$handle = fopen("getVars.php", "r");
$contents = '';
while (!feof($handle)) {
$contents .= fread($handle, 8192);
}
echo $contents."&cached=true";
}
fclose($handle);
?>
And then ActionScript
var updateTimer:Timer = new Timer(5000);
updateTimer.addEventListener(TimerEvent.TIMER, getQuotes);
updateTimer.start();
function getQuotes(e:Event):void
{
var request:URLRequest = new URLRequest ("getContent.php");
var loader:URLLoader = new URLLoader (request);
loader.addEventListener(Event.COMPLETE, onComplete);
loader.dataFormat = URLLoaderDataFormat.VARIABLES;
loader.load(request);
}
function onComplete (event:Event):void
{
var variables:URLVariables = new URLVariables( event.target.data );
currency1.text = variables.cur1;
currency2.text = variables.cur2;
}
var e:Event;
getQuotes(e);
You can see it in action here ... http://www.hupcapstudios.com/getCurrency.swf
Part of the hack is my parsing the page in php. I had to do some serious tuning action. I'm sure someone with a decent amount of parsing capabilities could write cleaner code to extract all the data you need.
I just thought that I would rock it. Good luck :)
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