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Planet PHP

• 

  PHP 5.3.9 Released!

  Posted: January 9th, 2012, 4:00pm MST by PHP: Hypertext Preprocessor

  The PHP development team would like to announce the immediate availability of PHP 5.3.9. This release focuses on improving the stability of the PHP 5.3.x branch with over 90 bug fixes, some of which are security related.Security Enhancements and Fixes in PHP 5.3.9:Added max_input_vars directive to prevent attacks based on hash collisions. (CVE-2011-4885)Fixed bug #60150 (Integer overflow during the parsing of invalid exif header). (CVE-2011-4566)Key enhancements in PHP 5.3.9 include:Fixed bug #55475 (is_a() triggers autoloader, new optional 3rd argument to is_a and is_subclass_of).Fixed bug #55609 (mysqlnd cannot be built shared)Many changes to the FPM SAPI moduleFor a full list of changes in PHP 5.3.9, see the ChangeLog. For source downloads please visit our downloads page, Windows binaries can be found on windows.php.net/download/.All users are strongly encouraged to upgrade to PHP 5.3.9.
• 

  Wordpress and disqus and post loops

  Posted: January 9th, 2012, 3:42pm MST by till

  First off — I don't have too much experience with disqus on Wordpress but when I looked at the code(-quality), disqus is one of the best plugins for Wordpress to date. I looked only very briefly, but I found it to be very clean, well documented and well architected. Good job, disqus!

  In case you happen to dive into Wordpress plugins in 2012, you will see that this is unfortunately not a given. Even (or maybe especially) the commercially available plugins to extend Wordpress are a source for PHP worst practices and contain all kinds of examples how not to write PHP. Part of it, is the platform, the rest is unexperienced developers or general lazyness.

  Anyhow! Enough the rant!

  Disqus and the loop

  In Wordpress, almost everything is a loop. If you'd like to display a list of posts somewhere (for whatever reason), a loop is executed. The advantage (vs. a straight SQL query) range from all kinds all things like caching to convenience. When said hook is used different actions (plugin hooks) and filters are run. So even when the objective is to just collect data (and not even display it) — for example for an Ajax request/response — all these things happen in the back.

  So in this case, whenever a loop is used, disqus will attempt to add their JavaScript to it. Usually, to display a comment form, counts and what not.

  Problem?

  The problem is, that the JavaScript code is then added all over and especially with Ajax you end up with the same code multiple times but add to that the cost of transport.

  Solution!

  Here's a simple workaround to prevent that.

  Stick the following code into your template when you do not want the code to appear:

  <?php
  if (has_action('loop_end', 'dsq_loop_end')) {
      remove_action('loop_end', 'dsq_loop_end');
  }
  

  Yay! Happyness!

  Fin

  Filters and hooks are really what make Wordpress worth while. Period. In case you happen to do development for it, I urge you to take a look at them. I have a couple more ideas for small posts — stay tuned.

• 

  Create your own framework... on top of the Symfony2 Components (part 4)

  Posted: January 9th, 2012, 1:27am MST by Fabien Potencier

  Before we start with today's topic, let's refactor our current framework just a little to make templates even more readable:

  <?php
   
  // example.com/web/front.php
   
  require_once __DIR__.'/../src/autoload.php';
   
  use Symfony\Component [HttpFoundation\Request;] use Symfony\Component [HttpFoundation\Response;]  
  $request = Request::createFromGlobals();
   
  $map = array(
      '/hello' => 'hello',
      '/bye'   => 'bye',
  );
   
  $path = $request->getPathInfo();
  if (isset($map[$path])) {
      ob_start();
      extract($request->query->all(), EXTR_SKIP);
      include sprintf(__DIR__.'/../src/pages/%s.php', $map[$path]);
      $response = new Response(ob_get_clean());
  } else {
      $response = new Response('Not Found', 404);
  }
   
  $response->send();
   

  As we now extract the request query parameters, simplify the hello.php template as follows:

  <!-- example.com/src/pages/hello.php -->
   
  Hello <?php echo htmlspecialchars($name, ENT_QUOTES, 'UTF-8') ?>
   

  Now, we are in good shape to add new features.

  One very important aspect of any website is the form of its URLs. Thanks to the URL map, we have decoupled the URL from the code that generates the associated response, but it is not yet flexible enough. For instance, we might want to support dynamic paths to allow embedding data directly into the URL instead of relying on a query string:

  # Before
  /hello?name=Fabien
   
  # After
  /hello/Fabien
   

  To support this feature, we are going to use the Symfony2 Routing component. As always, add it to composer.json and run the php composer.phar update command to install it:

  {
      "require": {
          "symfony/class-loader": "2.1.*",
          "symfony/http-foundation": "2.1.*",
          "symfony/routing": "2.1.*"
      }
  }
   

  From now on, we are going to use the generated Composer autoloader inste

  Truncated by Planet PHP, read more at the original (another 14824 bytes)