Call Piwik API in PHP approach with CodeIgniter causes blank/white screen

Support & Bugs
1

Everything went fine when I tried out ‘calling the API in PHP’ approach documented at the link below without CodeIgniter.

http://piwik.org/docs/analytics-api/calling-techniques/#toc-call-the-piwik-api-in-php

I was able to get results… however, when I tried the approach Using the CodeIgniter framework, I get a blank screen when I call

Piwik_FrontController::getInstance()->init();

I took a look at my error log and I noticed that I start to get the following error when I try the approach with CodeIgniter:

[14-Aug-2011 04:17:11] PHP Fatal error: Class ‘Controller’ not found in /home/test/application/controllers/products.php on line 3

Controller exist since it works fine when I take out Piwik API from CodeIgniter…

anyone else having the same problem? i tried to check if exit or die is being called but i dont think that’s the issue… im guessing that the

Piwik_FrontController::getInstance()->init();

call is causing the issue somehow… any thoughts would be greatly appreciated!

2

I would actually use the PHP Tracker API : Tracking API - Analytics Platform - Matomo

3

Hi JulienM–what I’m trying to achieve is actually to use the API to obtain the analytics…

4

My mistake, in that case I would use http://piwik.org/docs/analytics-api/calling-techniques/#toc-call-the-piwik-api-using-the-rest-api-over-http to avoid any conflict with your framework and Piwik internals.

5

I’ve used that approach and it works fine–however, the reason why I’m trying to call the API using the second approach is for better response time. I have Piwik installed on the same server and it doesn’t make sense for me to call the API over http… when I do, the response time is dramatically affected

6

Piwik doesn’t have a ‘Controller’ class. I’m guessing this is from CodeIgniter. In which case, check your include path, autoloader, and/or current working directory (in case, CodeIgniter uses relative include paths).

7

hi anthon–i did that–it works fine if I dont use the approach below–but when I do, codeigniter and piwik doesn’t seem to interact very well causing the error… =/

<?php // if you don't include 'index.php', you must also define PIWIK_DOCUMENT_ROOT // and include "libs/upgradephp/upgrade.php" and "core/Loader.php" define('PIWIK_INCLUDE_PATH', realpath('..')); define('PIWIK_USER_PATH', realpath('..')); define('PIWIK_ENABLE_DISPATCH', false); define('PIWIK_ENABLE_ERROR_HANDLER', false); define('PIWIK_ENABLE_SESSION_START', false); require_once PIWIK_INCLUDE_PATH . "/index.php"; require_once PIWIK_INCLUDE_PATH . "/core/API/Request.php"; Piwik_FrontController::getInstance()->init(); // This inits the API Request with the specified parameters $request = new Piwik_API_Request(' method=UserSettings.getResolution &idSite=7 &date=yesterday &period=week &format=XML &filter_limit=3 &token_auth=anonymous '); // Calls the API and fetch XML data back $result = $request->process(); echo $result;
8

The error message isn’t from Piwik. Have you tried looking at the backtrace?

9

I am having the same issue. I am using Codeigniter. I have created installed Piwik outside the application folder. I can’t figure it out the API. Please share your knowledge if you have solved this issue.