<script>
          $.ajax({
    	url: "backend.php",
    	type: "POST",
    	contentType: "application/json; charset=utf-8",
    	dataType: "json",
    	data: JSON.stringify({name: 'Hello world'}),
    	success: function(data) {
    		alert("Successfully");
    	},
      error: function(jqXHR, textStatus, errorThrown) {
        alert('Something went wrong:', textStatus);
        console.error(errorThrown);
      }
    })
    </script>

<?php
  header("Content-Type: application/json", true);
  
  $json = file_get_contents('php://input');
  
  $data = json_decode($json, true);

  echo json_encode([
    'message' => 'Incoming username is: ' . $data['name'],
  ]);
  
  // Ta vekk kommentaren for å enkelt teste error-funksjonen.
  // echo 'triggers error';