Edit report at https://bugs.php.net/bug.php?id=62616&edit=1

 ID:                 62616
 Comment by:         zoeslam at gmail dot com
 Reported by:        zoeslam at gmail dot com
 Summary:            ArrayIterator::count() from IteratorIterator
                     instance gives Segmentation fault
 Status:             Verified
 Type:               Bug
 Package:            SPL related
 Operating System:   Ubuntu 12.04
 PHP Version:        5.4.5
 Assigned To:        colder
 Block user comment: N
 Private report:     N

 New Comment:

I've discovered a similar misbehaviour:

https://bugs.php.net/bug.php?id=62629


Previous Comments:
------------------------------------------------------------------------
[2012-07-20 17:27:43] larue...@php.net

I've find the reason,  but seems not easy to fix.

$ii->count, will finally call to arrayObject->count (due to implemention of 
spl_dual_it_get_method).

but arrayObject->count will take the object as a spl_array_object, which is 
totally different struct with spl_dual_it_object, then in the 
spl_array_object_count_elements_helper , it will make the object struct 
mess(via 
update pos)

------------------------------------------------------------------------
[2012-07-20 13:57:50] jpa...@php.net

I can reproduce on 5.3.14

I can only reproduce calling the method directly.
Calling count($ii) instead of $ii->count() wont segfault

------------------------------------------------------------------------
[2012-07-20 12:54:55] f...@php.net

BT

#0  0x00007fdfaf4221d8 in ?? ()
#1  0x0000000000594a41 in spl_dual_it_free (intern=0x7fdfaf53fa20) at 
/opt/src/php-5.4.5/ext/spl/spl_iterators.c:1585
#2  spl_dual_it_dtor (_object=0x7fdfaf53fa20, handle=<optimized out>) at 
/opt/src/php-5.4.5/ext/spl/spl_iterators.c:2237
#3  0x00000000006a7b20 in zend_objects_store_del_ref_by_handle_ex (handle=2, 
handlers=<optimized out>) at /opt/src/php-5.4.5/Zend/zend_objects_API.c:206
#4  0x00000000006a7b63 in zend_objects_store_del_ref (zobject=0x7fdfaf53f990) 
at 
/opt/src/php-5.4.5/Zend/zend_objects_API.c:172
#5  0x0000000000674082 in _zval_dtor (zvalue=<optimized out>) at /opt/src/php-
5.4.5/Zend/zend_variables.h:35
#6  _zval_ptr_dtor (zval_ptr=0x7fdfaf53fb30) at /opt/src/php-
5.4.5/Zend/zend_execute_API.c:438
#7  _zval_ptr_dtor (zval_ptr=0x7fdfaf53fb30) at /opt/src/php-
5.4.5/Zend/zend_execute_API.c:427
#8  0x000000000068e28b in zend_hash_apply_deleter (ht=ht@entry=0xd34508, 
p=p@entry=0x7fdfaf53fb18) at /opt/src/php-5.4.5/Zend/zend_hash.c:650
#9  0x000000000068fdd1 in zend_hash_reverse_apply (ht=0xd34508, 
apply_func=apply_func@entry=0x673f10 <zval_call_destructor>) at /opt/src/php-
5.4.5/Zend/zend_hash.c:804
#10 0x000000000067438b in shutdown_destructors () at /opt/src/php-
5.4.5/Zend/zend_execute_API.c:217
#11 0x00000000006826c0 in zend_call_destructors () at /opt/src/php-
5.4.5/Zend/zend.c:925
#12 0x0000000000624805 in php_request_shutdown (dummy=dummy@entry=0x0) at 
/opt/src/php-5.4.5/main/main.c:1723
#13 0x0000000000726004 in do_cli (argc=2, argv=0x7fff5ea442f8) at /opt/src/php-
5.4.5/sapi/cli/php_cli.c:1174
#14 0x0000000000428455 in main (argc=2, argv=0x7fff5ea442f8) at /opt/src/php-
5.4.5/sapi/cli/php_cli.c:1364

------------------------------------------------------------------------
[2012-07-20 11:54:38] f...@php.net

Reproducible on Debian wheezy with 5.4.0 and 5.4.5.

------------------------------------------------------------------------
[2012-07-20 08:13:34] vanidlesky dot jr at gmail dot com

VanZCool

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


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