From: vma1 at abv dot bg
Operating system: Linux
PHP version: 5CVS-2006-07-09 (snap)
PHP Bug Type: Arrays related
Bug description: A problem with values returned by ArrayAccess::offsetGet()
Description:
------------
Values returned by ArrayAccess::offsetGet() cannot be used as a search key
in a call to array_key_exists(). It looks like for some reason the
scripting engine requires that the first argument of array_key_exists() is
writable, which conflicts with the documented prototype of
array_key_exists().
The sample code works fine with PHP 5.1.4 so it is a problem introduced in
PHP 5.2.
Reproduce code:
---------------
<?php
class array_obj implements ArrayAccess
{
public function offsetExists ($index) {return (true);}
public function offsetGet ($index) {return (5);}
public function offsetSet ($index, $value) {}
public function offsetUnset ($index) {}
}
$obj = new array_obj ();
array_key_exists ($obj [0], array ("a", "b", "c"));
?>
Expected result:
----------------
The program should terminate with no output at all.
Actual result:
--------------
Fatal error: Objects used as arrays in post/pre increment/decrement must
return values by reference in /archive/error.php on line 14
--
Edit bug report at http://bugs.php.net/?id=38049&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=38049&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=38049&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=38049&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=38049&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=38049&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=38049&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=38049&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=38049&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=38049&r=support
Expected behavior: http://bugs.php.net/fix.php?id=38049&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=38049&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=38049&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=38049&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=38049&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=38049&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=38049&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=38049&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=38049&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=38049&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=38049&r=mysqlcfg
