Update upload.php

examples/php-xhr/upload.php

@@ -11,7 +11,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
     header('Access-Control-Allow-Origin: *');
 
     if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS'])) {
-        header('Access-Control-Allow-Headers: {$_SERVER["HTTP_ACCESS_CONTROL_REQUEST_HEADERS"]}');
+        header("Access-Control-Allow-Headers: {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}");
     }
 
     //Just exit with 200 OK with the above headers for OPTIONS method
@@ -22,16 +22,20 @@ if ($_POST && !empty($_FILES["files"])) {
     $target_dir = './uploads/';
     $target_file = $target_dir . basename($_FILES['files']['name'][0]);
     try {
-        move_uploaded_file($_FILES['files']['tmp_name'][0], $target_file);
-        header('Access-Control-Allow-Origin: *');
-        header('Content-type: application/json');
-        $data = ['url' => $target_file, 'message' => 'The file ' . basename($_FILES['files']['name'][0]) . ' has been uploaded.'];
-        http_response_code(201);
-        echo json_encode($data);
+        if (move_uploaded_file($_FILES['files']['tmp_name'][0], $target_file)) {
+            header('Access-Control-Allow-Origin: *');
+            header('Content-type: application/json');
+            $data = ['url' => $target_file, 'message' => 'The file ' . basename($_FILES['files']['name'][0]) . ' has been uploaded.'];
+            http_response_code(201);
+            echo json_encode($data);
+        } else {
+            throw new Exception('Unable to move the uploaded file to its final location:' . $target_file);
+        }
+
     } catch (\Throwable $th) {
         header('Access-Control-Allow-Origin: *');
         header('Content-type: application/json');
-        $data = ['message' => 'Sorry, there was an error uploading your file.', 'error'=>$th->getMessage()];
+        $data = ['message' => 'Sorry, there was an error uploading your file.', 'error' => $th->getMessage()];
         http_response_code(400);
         echo json_encode($data);
     }