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.
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);
?>