jarwo bangun jarwo bangun - 9 months ago 32
Javascript Question

How to retrieve json data from php

i want to retrive json data from php with ajax and output it for test. but it did not work.

Client index.php

<html>
<head>
<title>kakak</title>
</head>
<body>
<p id="demo"></p>

<script>

var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
myObj = JSON.parse(this.responseText);
document.getElementById("demo").innerHTML = myObj.name;
}
};
xmlhttp.open("GET", "json.php", true);
xmlhttp.send();

</script>
</body>
</html>


And this's json.php already have object.

<?php

$myArray = ["name" => "john", "age" => 30, "city" => "Japan"];

$myObj = json_encode($myArray);

?>


I want to retrieve object name but it dont ouput anything.

Answer Source

You need to echo the JSON string in PHP code.

echo $myObj;

Final code would be:

<?php

$myArray = ["name" => "john", "age" => 30, "city" => "Japan"];
$myObj = json_encode($myArray);
echo $myObj;
// or directly
// echo json_encode($myArray);
?>