How to read JSON data from a web server running PHP and MySQL?

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I read example in http://www.w3schools.com/json/json_example.asp[^]

And I try it with my mysql database and my PHP code. But it does not work. I am a beginner and I don't know what it wrong. Please help me, thanks. Here is my PHP link: http://xebus2014.tk/demo.php[^]
And I change w3school code like this:

HTML

<!DOCTYPE html>
<html>

<head>
<style>
h1 {
    border-bottom: 3px solid #cc9900;
    color: #996600;
    font-size: 30px;
}
table, th , td  {
    border: 1px solid grey;
    border-collapse: collapse;
    padding: 5px;
}
table tr:nth-child(odd)	{
    background-color: #f1f1f1;
}
table tr:nth-child(even) {
    background-color: #ffffff;
}
</style>
</head>

<body>

<h1>Customers</h1>
<div id="id01"></div>

<script>
var xmlhttp = new XMLHttpRequest();
var url = "http://xebus2014.tk/demo.php";

xmlhttp.onreadystatechange=function() {
    if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        myFunction(xmlhttp.responseText);
    }
}
xmlhttp.open("GET", url, true);
xmlhttp.send();

function myFunction(response) {
    var arr = JSON.parse(response);
    var i;
    var out = "<table>";

    for(i = 0; i < arr.length; i++) {
        out += "<tr><td>" + 
        arr[i].STT +
        "</td><td>" +
        arr[i].ID +
        "</td><td>" +
        arr[i].Name +
        "</td><td>" +
        arr[i].Singer +
        "</td></tr>";
    }
    out += "</table>"
    document.getElementById("id01").innerHTML = out;
}
</script>

</body>
</html>

Posted 7-Jun-15 22:42pm

Member 10390715

Updated 7-Jun-15 22:44pm

v2

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Comments

F-ES Sitecore 8-Jun-15 4:55am

The url looks like json in the browser, but it is returning a whole html page along with html\body tags etc. You need to change your php page so that it returns just the json data and nothing else.

Kornfeld Eliyahu Peter 8-Jun-15 5:39am

No. It's pure JSON...
(you probably checked with some debugging tool and saw the wrapping of the browser...)

Member 10390715 8-Jun-15 6:05am

Thanks for your help, I forget "header('Content-type: application/json');" in my PHP code.

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