You can enable debugging during application instantiation with this setting:
<?php $app = new \Slim\Slim(array( 'debug' => true ));
You may also enable debugging during runtime with the Slim application’s
config() instance method:
<?php $app = new \Slim\Slim(); //Enable debugging (on by default) $app->config('debug', true); //Disable debugging $app->config('debug', false);
If debugging is enabled and an exception or error occurs, a diagnostic screen will appear with the error description, the affected file, the file line number, and a stack trace. If debugging is disabled, the custom Error handler will be invoked instead.