The patch showcase: self

The keyword self can be used like $this for static classes - the problem with the current implementation is that it does not respect the "runtime class" (don't know how to describe this any better...). See also this discussion on the PHP developer's mailinglist.

As of today the patch fixes this. The following now works as one would intuitively expect:

<?php 
  class A {
    protected static $instance = NULL;
    
    public static function getInstance() {
      if (!self::$instance) {
        self::$instance= new self();
      }
      return self::$instance;
    }
  }

  class B extends A { }

  echo get_class(B::getInstance());
?>

Subscribe

You can subscribe to the XP framework's news by using RSS syndication.

Categories

Related

Find related articles by a search for «The».