Bug #54119 [Fbk->Opn]: Bogus behavior of Zend in relation to stream wrappers

From: Date: Mon, 28 Feb 2011 14:50:00 +0000
Subject: Bug #54119 [Fbk->Opn]: Bogus behavior of Zend in relation to stream wrappers
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-159100@lists.php.net to get a copy of this message 
Edit report at http://bugs.php.net/bug.php?id=54119&edit=1

 ID:                 54119
 User updated by:    damien at commerceguys dot com
 Reported by:        damien at commerceguys dot com
 Summary:            Bogus behavior of Zend in relation to stream
                     wrappers
-Status:             Feedback
+Status:             Open
 Type:               Bug
 Package:            Filesystem function related
 Operating System:   Linux
 PHP Version:        5.3.5
 Block user comment: N
 Private report:     N

 New Comment:

I can confirm this works on 5.3.6-dev. So this seems to have go fixed
along the 
way, any idea where?


Previous Comments:
------------------------------------------------------------------------
[2011-02-28 13:23:32] pajoye@php.net

Please try using this snapshot:

  http://snaps.php.net/php5.3-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/



------------------------------------------------------------------------
[2011-02-28 13:21:25] damien at commerceguys dot com

Description:
------------
See test script: when returning a undefined key from stream_stat(), the
behavior 
of the Zend interpretor changes.

I confirmed this on PHP 5.3.5, pjoye reproduced it separately.

Test script:
---------------
--TEST--
Test that user space streams do not break the fabric of the universe.
--FILE--
<?php

class UserSpaceStream {
  public function stream_open($uri, $mode, $options, &$opened_path) {
    return TRUE;
  }

  public function stream_read($count) {
    return '';
  }

  public function stream_write($data) {
    return TRUE;
  }

  public function stream_eof() {
    return FALSE;
  }

  public function stream_stat() {
    $stat = array();

    // This triggers (correctly) a "Notice: Undefined index: size in %s
on line %d".
    $array = array();
    $stat['size'] = $array['size'];

    return $stat;
  }

}

stream_wrapper_register("test", "UserSpaceStream");

// Alone, the assignment of a key to an undefined variable is legal.
$undefined_variable['key'] = 'value';

// This fstat() call triggers something weird...
$h = fopen('test://anyfile', 'r');
fstat($h);

// ... from this point, PHP triggers a "Warning: Cannot use a scalar
value as
// an array" for each assignement of array keys to undefined variables.
$undefined_variable2['key'] = 'value';

?>
--EXPECTF--
Notice: Undefined index: size in %s on line %d




------------------------------------------------------------------------



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