Method chaining off constructors

["Christoph Boget" <christoph.boget@xxxxxxxxx>]

Is there a reason why you can't do method chaining off of constructors?

Consider the following class:

  class bob
  {
    public function __construct()
    {
      echo 'Constructor()';
    }

    public function one()
    {
      echo '->one()';
      return $this;
    }

    public function two()
    {
      echo '->two()';
      return $this;
    }
  }

This works:

  $bob = new bob();
  $bob->one()->two();

whereas this doesn't.

  $bob = new bob()->one()->two();

Why?  I thought constructors returned the object?

thnx,
Christoph

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