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Editorial Team
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Asked: 2026-05-31T21:27:14+00:00

So I’m trying to output an array to javascript which will tell me if

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So I’m trying to output an array to javascript which will tell me if certain streams are online or offline. Every time I try to alert the output it gives me an unexpected token ‘<‘ at line 1 of my document. It’s driving me nuts. My code is fairly straight forward:

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Streaming</title>
    <style type="text/css">
        *{margin:0px;padding:0px;font-family:Arial}
        #container{margin:0 auto;width: 1000px}
        #player iframe{width:625px;height:510px;}
        #player{float:left}
    </style>
    <script type="text/javascript" src="dynamic.js" ></script>
</head>
<body>
    <div id="container">
        <div id="player">
            <iframe src="streams/tx3fate.html" frameborder="0" scrolling="no"></iframe>
        </div>
        <iframe frameborder="0" scrolling="no" id="chat_embed" src="http://twitch.tv/chat/embed?channel=day9tv&amp;popout_chat=true" height="500" width="350"></iframe>
    </div>
</body>
</html>

Javascript

function getActive() {
    if(window.XMLHttpRequest) {
        xmlhttp = new XMLHttpRequest();
    } else {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }

    xmlhttp.onreadystatechange = function() {
        if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {  
            var test = JSON.parse(xmlhttp.responseText);
            window.alert(test);
        }
    }

    xmlhttp.open("GET", "streams.php", true);
    xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlhttp.send('check=true');
}

getActive();

PHP

<?php  
    if($_GET['check'] == true) {
        $streams = array(
            "mxgdichello" => "offline",
            "day9tv" => "offline",
            "tx3fate" => "offline",
            "wochtulka" => "offline",
            "unawaresc2" => "offline",
            "xerse" => "offline",
            "atree2425" => "offline",
            "sc1pio"  => "offline",
            "lokk_2" => "offline",
            "tsremark" => "offline",
            "ognastarcraft" => "offline"
        );

        foreach($streams as $index)    {
            $json_file = @file_get_contents("http://api.justin.tv/api/stream/list.json?channel={$index}", 0, null, null);
            $json_array = json_decode($json_file, true);

            if ($json_array[0]['name'] == "live_user_{$index}") {
                $index = "online";
            } else {
                $index = "offline";
            }
        }

        echo json_encode($streams);
    }
?>

My Iframe html files just contain flash embed objects. I have no idea what is going on – I know that $streams is definitely returning an array so not sure what to do. I am getting the Error in my javascript debugger.

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1 Answer

  1. Editorial Team

    It sounds like it is failing to parse your returned json (xmlhttp.responseText)
    Instead of looking at the value of the response text to see why it cannot be parsed

        if(xmlhttp.readyState == 4 && xmlhttp.status == 200)
    {   
        console.log(xmlhttp.responseText);
        var test = JSON.parse(xmlhttp.responseText);

    Try adding the parameter to the url, I think you can only send params with send() for POST requests

     xmlhttp.open("GET", "streams.php?check=true", true);
 xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
 xmlhttp.send();
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