Showing PHP Notices in Phalcon

Try this:

    ini_set('display_errors', 'On');
    error_reporting(E_ALL);

Then before init the application:

(new \Phalcon\Debug)->listen(); // $debug = new \Phalcon\Debug(); $debug->listen();

<?php

try {
//debug
  ini_set('display_errors', "On");
  error_reporting(E_ALL);
  $debug = new Phalcon\Debug();
  $debug->listen();
  $config = new \Phalcon\Config\Adapter\Ini('../app/lib/config/configuration.ini');

This is my first 10lines of code in public/index.php And it doesn't work

Remove the

  ini_set('display_errors', "On");
  error_reporting(E_ALL);
  $debug = new Phalcon\Debug();

from try {} catch() {} . Phalcon debug throws exceptions

  // the correct way. This should be only on your DEV environment !
  ini_set('display_errors', "On");
  error_reporting(E_ALL);
  $debug = new Phalcon\Debug();
  $debug->listen();

try {
  $config = new \Phalcon\Config\Adapter\Ini('../app/lib/config/configuration.ini');

First of all thanks for the tip. When You wrote the correct way, i've noticed that my code cant work properly. But it still doesn't work.

It would be helpful if you paste the entire index.php code here. Also, to display php notices,

    ini_set('display_errors', 'On');
    error_reporting(E_ALL);

should be enought.

<?php

//debug
ini_set('display_errors', "On");
error_reporting(E_ALL);
$debug = new Phalcon\Debug();
$debug->listen();

try {
  date_default_timezone_set('Europe/Warsaw');
  $config = new \Phalcon\Config\Adapter\Ini('../app/lib/config/configuration.ini');
  $loader = new \Phalcon\Loader();
  $loader->registerDirs(array(
      $config->directories->controllers,
      $config->directories->models,
      $config->directories->lib,
      $config->directories->validation,
      'tcpdf' => '../app/lib/assets/tcpdf/',
  ))->register();
  $di = new \Phalcon\DI\FactoryDefault();
  $di->set('view', function() use ($config) {
    $view = new \Phalcon\Mvc\View();
    $version = new Version($config, TRUE);
    $view->setVar('version', $version->getVersion());
    $view->setViewsDir('../app/views/');
    return $view;
  });
  $di->setShared('session', function() {
    $session = new Phalcon\Session\Adapter\Files();
    $session->start();
    return $session;
  });
  $di->set('dispatcher', function() {
    $eventsManager = new \Phalcon\Events\Manager();
    $eventsManager->attach("dispatch:beforeException", function($event, $dispatcher, $exception) {
      if ($exception instanceof DispatchException) {
        return false;
      }
      if ($event->getType() == 'beforeException') {
        switch ($exception->getCode()) {
          case \Phalcon\Dispatcher::EXCEPTION_HANDLER_NOT_FOUND:
          case \Phalcon\Dispatcher::EXCEPTION_ACTION_NOT_FOUND:
            $dispatcher->forward(array(
                'controller' => 'index',
                'action' => 'notExists'
            ));
            return false;
        }
      }
    });
    $dispatcher = new \Phalcon\Mvc\Dispatcher();
    $dispatcher->setEventsManager($eventsManager);
    return $dispatcher;
  }, true);
  $app = new \Phalcon\Mvc\Application($di);

  echo $app->handle()->getContent();
} catch (\Phalcon\Exception $e) {
  echo '<pre>';
  echo get_class($e), ": ", $e->getMessage(), "<br />";
  echo " File=", $e->getFile(), "<br />";
  echo " Line=", $e->getLine(), "<br />";
  echo " Stack Trace: <br />";
  foreach (explode("#", $e->getTraceAsString()) as $i => $trace) {
    if ($i != 0)
      echo ' #' . $trace;
  }
  echo '</pre>';
}