I just extended Quercus to support the new core language features of PHP 5.4. The changes are currently in our subversion repository and should be in our next release: 4.0.34. Traits, new in 5.4, was a bit of a pain to implement because of all the weird edge cases (i.e. __CLASS__, insteadof, as). Here’s a list of what’s new:

• traits

  <?php
  
  trait T0 {
    function foo()
    {
      echo "inside T0->foo()\n";
    }
  }
  
  class A {
    use T0;
  }
  
  $a = new A();
  $a->foo();
  
  ?>
  

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