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Date: Wed, 05 Dec 2012 15:38:46 +0100
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Subject: Required __construct call in SplFileObject
From: cr@okto.tv (Christoph Rosse)

Hi,

I'm just curious is there a reason why SplFileObject requires a call to 
parent::__construct()
if I override the class? Someone on my twitter feed mentioned it because 
he tried to create a Mock-Object.

The following code gives me:
PHP Fatal error:  Uncaught exception 'LogicException' with message 'The 
parent constructor was not called: the object is in an invalid state

<?php

class cls1 extends \SplFileObject
{
             public function __construct()
             {

             }


             public function fpassthru()
             {
             }
}
$cl = new cls1();
$cl->fpassthru();