Monitors errors and exceptions and reports them to Rollbar

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This library detects errors and exceptions in your application and reports them to Rollbar for alerts, reporting, and analysis.

Quick start

// installs global error and exception handlers
Rollbar::init(array('access_token' => 'POST_SERVER_ITEM_ACCESS_TOKEN'));

try {
    throw new Exception('test exception');
} catch (Exception $e) {

// Message at level 'info'
Rollbar::report_message('testing 123', Level::INFO);

// With extra data (3rd arg) and custom payload options (4th arg)
Rollbar::report_message('testing 123', Level::INFO,
                        // key-value additional data
                        array("some_key" => "some value"),  
                        // payload options (overrides defaults) - see api docs
                        array("fingerprint" => "custom-fingerprint-here"));

// raises an E_NOTICE which will *not* be reported by the error handler
$foo = $bar;

// will be reported by the exception handler
throw new Exception('test 2');



Download rollbar.php and Level.php and put them together somewhere you can access.

If Using Composer

Add rollbar/rollbar to your composer.json:

    "require": {
        "rollbar/rollbar": "~0.18.0"


Add the following code at your application's entry point:

require_once 'rollbar.php';

$config = array(
    // required
    'access_token' => 'POST_SERVER_ITEM_ACCESS_TOKEN',
    // optional - environment name. any string will do.
    'environment' => 'production',
    // optional - path to directory your code is in. used for linking stack traces.
    'root' => '/Users/brian/www/myapp'

Be sure to replace POST_SERVER_ITEM_ACCESS_TOKEN with your project's post_server_item access token, which you can find in the interface.

This will install an exception handler (with set_exception_handler) and an error handler (with set_error_handler). If you'd rather not do that:

$set_exception_handler = false;
$set_error_handler = false;
Rollbar::init($config, $set_exception_handler, $set_error_handler);

For Heroku Users

First, add the addon:

heroku addons:create rollbar:free

The access_token and root config variables will be automatically detected, so the config is simply:

    'environment' => 'production'

Basic Usage

That's it! Uncaught errors and exceptions will now be reported to Rollbar.

If you'd like to report exceptions that you catch yourself:

try {
} catch (Exception $e) {
    // or
    Rollbar::report_exception($e, array("my" => "extra", "data" => 42));

You can also send Rollbar log-like messages:

Rollbar::report_message('could not connect to mysql server', Level::WARNING);
Rollbar::report_message('Here is a message with some additional data',
    Level::INFO, array('x' => 10, 'code' => 'blue'));


By default, payloads are batched and sent to the Rollbar servers at the end of every script execution via a shutdown handler, or when the batch size reaches 50, whichever comes first. This works well in standard short-lived scripts, like serving web requests.

If you're using Rollbar in a long-running script, such as a Laravel project or a background worker, you may want to manually flush the batch. To flush, simply call:


For example, if using Laravel, add the above line to your App::after() event handler. Or in a looping background worker, call it at the end of each loop.

You can also tune the max batch size or disable batching altogether. See the batch_size and batched config variables, documented below.


Asynchronous Reporting

By default, payloads (batched or not) are sent as part of script execution. This is easy to configure but may negatively impact performance. With some additional setup, payloads can be written to a local relay file instead; that file will be consumed by rollbar-agent asynchronously. To turn this on, set the following config params:

$config = array(
  // ... rest of current config
  'handler' => 'agent',
  'agent_log_location' => '/var/www'  // not including final slash. must be writeable by the user php runs as.

You'll also need to run the agent. See the rollbar-agent docs for setup instructions.

Configuration reference

All of the following options can be passed as keys in the $config array.

Your project access token.

agent_log_location Path to the directory where agent relay log files should be written. Should not include final slash. Only used when handler is agent.

Default: /var/www

base_api_url The base api url to post to.


batch_size Flush batch early if it reaches this size.

Default: 50

batched True to batch all reports from a single request together.

Default: true

branch Name of the current branch.

Default: master

capture_error_stacktraces Record full stacktraces for PHP errors.

Default: true

checkIgnore Function called before sending payload to Rollbar, return true to stop the error from being sent to Rollbar.

Default: null

code_version The currently-deployed version of your code/application (e.g. a Git SHA). Should be a string.

Default: null

environment Environment name, e.g. 'production' or 'development'

Default: 'production'

error_sample_rates Associative array mapping error numbers to sample rates. Sample rates are ratio out of 1, e.g. 0 is "never report", 1 is "always report", and 0.1 is "report 10% of the time". Sampling is done on a per-error basis.

Default: empty array, meaning all errors are reported.

handler Either 'blocking' or 'agent'. 'blocking' uses curl to send requests immediately; 'agent' writes a relay log to be consumed by rollbar-agent.

Default: 'blocking'

host Server hostname.

Default: null, which will result in a call to gethostname() (or php_uname('n') if that function does not exist)

include_error_code_context A boolean that indicates you wish to gather code context for instances of PHP Errors. This can take a while because it requires reading the file from disk, so it's off by default.

Default: false

include_exception_code_context A boolean that indicates you wish to gather code context for instances of PHP Exeptions. This can take a while because it requires reading the file from disk, so it's off by default.

Default: false

included_errno A bitmask that includes all of the error levels to report. E.g. (E_ERROR | E_WARNING) to only report E_ERROR and E_WARNING errors. This will be used in combination with error_reporting() to prevent reporting of errors if use_error_reporting is set to true.


logger An object that has a log($level, $message) method. If provided, will be used by RollbarNotifier to log messages.

person An associative array containing data about the currently-logged in user. Required: id, optional: username, email. All values are strings.

person_fn A function reference (string, etc. - anything that call_user_func() can handle) returning an array like the one for 'person'.

root Path to your project's root dir

scrub_fields Array of field names to scrub out of _POST and _SESSION. Values will be replaced with asterisks. If overridiing, make sure to list all fields you want to scrub, not just fields you want to add to the default. Param names are converted to lowercase before comparing against the scrub list.

Default: ('passwd', 'password', 'secret', 'confirm_password', 'password_confirmation', 'auth_token', 'csrf_token')

shift_function Whether to shift function names in stack traces down one frame, so that the function name correctly reflects the context of each frame.

Default: true

timeout Request timeout for posting to rollbar, in seconds.

Default: 3

report_suppressed Sets whether errors suppressed with '@' should be reported or not

Default: false

use_error_reporting Sets whether to respect current error_reporting() level or not

Default: false

proxy Send data via a proxy server.

E.g. Using a local proxy with no authentication

$config['proxy'] = "";

E.g. Using a local proxy with basic authentication

$config['proxy'] = array(
    'address' => '',
    'username' => 'my_user',
    'password' => 'my_password'

Default: No proxy

Example use of error_sample_rates:

$config['error_sample_rates'] = array(
    // E_WARNING omitted, so defaults to 1
    E_NOTICE => 0.1,
    E_USER_ERROR => 0.5,
    // E_USER_WARNING will take the same value, 0.5
    E_USER_NOTICE => 0.1,
    // E_STRICT and beyond will all be 0.1

Example use of person_fn:

function get_current_user() {
    if ($_SESSION['user_id']) {
        return array(
            'id' => $_SESSION['user_id'], // required - value is a string
            'username' => $_SESSION['username'], // optional - value is a string
            'email' => $_SESSION['user_email'] // optional - value is a string
    return null;
$config['person_fn'] = 'get_current_user';

Related projects

A Laravel-specific package is available for integrating with Laravel: Laravel-Rollbar

A CakePHP-specific package is avaliable for integrating with CakePHP 2.x: CakeRollbar

Help / Support

If you run into any issues, please email us at

You can also find us in IRC: #rollbar on

For bug reports, please open an issue on GitHub.


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

Tests are in tests. To run the tests: phpunit