gistfile1.txt

<?php

use Phalcon\Mvc\Micro,
    Phalcon\Events\Manager as EventsManager,
    Phalcon\Http\Response,
    Phalcon\Http\Request;

//Create a events manager
$eventManager = new EventsManager();

$request = new Request();

$debug = $request->getQuery('_debug', null, false) == 'true';

//Listen all the application events
$eventManager->attach('dispatch:beforeException', function($event, $app) {
	
});

$app = new Micro();

$app->setEventsManager($eventManager);

$app->get('/welcome/{name}', function ( $name ) {
    throw new \Exception('a');
});

$app->after(function() use ($app) {
	
	$app->response->setContentType('application/json')->sendHeaders();
    
    echo json_encode(array(
    	'status' => 'success',
    	'data' => $app->getReturnedValue()
    ));
});

try
{
	$app->handle();
}
catch( \Exception $e ) {
	
	$response  = new Response();

	$error = array(
		'status' => 'error',
		'code' => $e->getCode()
	);

	if( $debug ) {
		$error['message'] = $e->getMessage();
	}

    $response->setStatusCode('500', 'Internal error');
    $response->setContentType('application/json');
    $response->setJsonContent($error);

    $response->send();
}