php__silex__book/src/demo/Controllers/BlogController.php

<?php

namespace demo\Controllers;


use Silex\Application;
use Symfony\Component\HttpFoundation\Response;

/**
 * Class BlogController demonstrates most basic controller types.
 *
 * Available automatic arguments on controllers: Application, Request.
 *
 * @package demo\Controllers
 */
class BlogController {

  const POSTS = [
    1 => [
      'date' => '2011-03-29',
      'author' => 'igorw',
      'title' => 'Using Silex',
      'body' => '...It takes time on version changes...',
    ],
    2 => [
      'date' => '2015-03-29',
      'author' => 'igorw',
      'title' => 'Using Silex 2',
      'body' => '...Especialy S1 to S2...',
    ],
  ];


  // Default: http://blog, not http://blog/
  public function fifiAction(Application $app, $id) {
    return "<h1>Fifi action {$id} </h1>\n";
  }

  public function index() {
    $output = "<ul>\n";
    foreach (static::POSTS as $post) {
      $output .= "<li>" . $post ['title'] . "</li>\n";
    }
    $output .= "</ul>\n";
    return $output;
  }

  // Default: http://blog, not http://blog/
  public function show(Application $app, $id) {
    if (!isset (static::POSTS[$id])) {
      // Will trigger the error() (or built-in) error handler.1
      $app->abort(Response::HTTP_NOT_FOUND, "Post $id does not exist.");
    }
    $post = static::POSTS[$id];
    return "<h1> {$post['title']}</h1>" . "<p> {$post['body']} </p>";
  }

  // Encode response manually.
  public function json(Application $app) {
    return $app->json(static::POSTS);
  }

  // Rely on the view handler.
  public function jsonView() {
    return static::POSTS;
  }
}