ajax5.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <button id="button">Load users</button>
    <br><br>
    <h1>users </h1>
    <div id="users"></div>
    <script>
    document.getElementById('button').addEventListener('click', loadUsers);
    function loadUsers() {
        var xhr = new XMLHttpRequest();
        xhr.open('GET', 'users.php', true);
        xhr.onload = function() {
            if(this.status) {
                var users = JSON.parse(this.responseText);

                var output = '';

                for (var i in users) {
                    output += '<ul>' +
                        '<li>ID: ' +users[i].id+'</li>'+
                        '<li>Name' +users[i].name+'</li>'+
                        '</ul>';
                }
                document.getElementById('users').innerHTML = output;
            }
        }
        xhr.send();
    }
    </script>
</body>
</html>