Description:
------------
(note the problem is that it looks like that when using php 5.4 the remi repository of Redhat automatically installs apc version 3.1.14, a yum downgrade to 3.1.13 fixes the problem)

Error message from: Zend/zend_compile.c:3351

as there is no segfault I didn't get a backtrace with GDB (even when php5.4.11 is compiled with debug headers, enable apc debug makes things worst)

It happens in version php-pecl-apc 3.1.14 (not in 3.1.13), I suspect the changes in apc_compile.c are responsible for the failure (but couldn't figure it out in a short time, so I place just the bug report :-| )

Error when calling the class in an php-fpm environment:
E_CORE_ERROR Class ClassName could not implement interface Iterator

Error when running php - script (extracted code from phpt script) in CLI env (the phpt test itself passes because it generates the correct output): see 
--- Actual Result ---



Test script:
---------------
--TEST--
APC: can use ArrayIterator
--SKIPIF--
<?php require_once(dirname(__FILE__) . '/skipif.inc'); ?>
--INI--
apc.enabled=1
apc.enable_cli=1
--FILE--
<?php

class foo extends ArrayIterator { }
$foo = new foo;
var_dump($foo);

?>
===DONE===
<?php exit(0); ?>
--EXPECTF--
object(foo)#%d (1) {
  ["storage":"ArrayIterator":private]=>
  array(0) {
  }
}
===DONE===


Expected result:
----------------
object(foo)#1 (1) {
  ["storage":"ArrayIterator":private]=>
  array(0) {
  }
}

Actual result:
--------------
object(foo)#1 (1) {
  ["storage":"ArrayIterator":private]=>
  array(0) {
  }
}
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
/home/gbuske/Downloads/php-5.4.11/Zend/zend_hash.c(450) :  Freeing 0x7FD27B84F1A8 (256 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
Zend/zend_language_scanner.l(1898) :  Freeing 0x7FD27B853B48 (4 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
/home/gbuske/Downloads/php-5.4.11/Zend/zend_compile.c(4816) :  Freeing 0x7FD27B854250 (568 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
/home/gbuske/Downloads/php-5.4.11/Zend/zend_compile.c(3373) :  Freeing 0x7FD27B854588 (48 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
/home/gbuske/Downloads/php-5.4.11/Zend/zend_hash.c(292) :  Freeing 0x7FD27B854610 (64 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
/home/gbuske/Downloads/php-5.4.11/Zend/zend_alloc.c(2529) : Actual location (location was relayed)
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
/home/gbuske/Downloads/php-5.4.11/Zend/zend_hash.c(324) :  Freeing 0x7FD27B8546A8 (72 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
Last leak repeated 25 times
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
/home/gbuske/Downloads/php-5.4.11/Zend/zend_compile.c(2867) :  Freeing 0x7FD27B854920 (240 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
/home/gbuske/Downloads/php-5.4.11/Zend/zend_hash.c(236) : Actual location (location was relayed)
[Mon Jan 21 07:27:21 2013]  Script:  '/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php'
/home/gbuske/Downloads/php-5.4.11/Zend/zend_hash.c(893) :  Freeing 0x7FD27B854B08 (240 bytes), script=/home/gbuske/Downloads/APC-3.1.14/tests/bug_CompileIterator.php
/home/gbuske/Downloads/php-5.4.11/Zend/zend_hash.c(339) : Actual location (location was relayed)
Last leak repeated 22 times
=== Total 55 memory leaks detected ===