# marco-oweber@xxxxxx / 2007-02-12 23:34:21 +0100:
> Why is this happening? Can you confirm this? What has to be done different?
> If you don't get these results (sef faults (I still want to get 2,3,4,5,6)
> would you mind
> telling me which version of php you are using?
>
> The file is t.php and its appended at the bottom (cat t.php)
>
> Thanks in advance Marc
>
>
> marc@localhost /tmp $ php t.php
> ======================
> tescase is !!0!!
> ======================
> are the following two results the same?
> 1 :array(2) {
> [0]=>
> int(5)
> [1]=>
> int(6)
> }
> 2 :current element in my_iterator_to_arrayArray
> current element in my_iterator_to_array2
> current element in my_iterator_to_array3
> current element in my_iterator_to_array4
> current element in my_iterator_to_array5
> current element in my_iterator_to_array6
> array(6) {
> [0]=>
> array(3) {
> [0]=>
> Segmentation fault
>
>
> marc@localhost /tmp $ php t.php
> ======================
> tescase is !!1!!
> ======================
> are the following two results the same?
> 1 :array(2) {
> [0]=>
> int(5)
> [1]=>
> int(6)
> }
> 2 :
>
> foreach does print what I want (23456), why ?
> 2
> 3
> 4
> 5
> 6
>
>
> running for each the second time results in segfault again. Why ?
> Segmentation fault
>
>
> marc@localhost /tmp $ php -v
> PHP 5.1.6-pl6-gentoo (cli) (built: Feb 11 2007 02:37:11)
> Copyright (c) 1997-2006 The PHP Group
> Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
>
>
> marc@localhost /tmp $ cat t.php
> <?php
> $testcase = 1;
> echo " ======================\n";
> echo " tescase is !!$testcase!!\n";
> echo " ======================\n";
>
> function A()
> {
> $a = func_get_args();
> return new RecursiveArrayIterator(array(func_get_args()));
> }
>
> function my_iterator_to_array($it)
> {
> echo $it instanceof IteratorAggregate; // doesn't output anything
> so result is false. So I don't have to try calling getIterator manually
> $res = array();
> while ($it->valid()){
> echo "current element in my_iterator_to_array",
> $it->current(),"\n";
> $res[] = $it->current();
> $it->next();
> }
> return $res;
> }
>
> echo "are the following two results the same?\n";
> echo "1 :";
> var_dump(iterator_to_array(new RecursiveIteratorIterator( A (A(2) ,
> A (3,4), A(5,6)))));
> echo "2 :";
> if ($testcase == 0)
> var_dump(my_iterator_to_array(new RecursiveIteratorIterator( A
> (A(2) , A (3,4), A(5,6)))));
>
> $ri = new RecursiveIteratorIterator( A (A(2) , A (3,4), A(5,6)));
>
> echo "\n\nforeach does print what I want (23456), why ?\n";
> foreach( $ri as $v) echo "$v\n";
> // why does the second foreach cause a segfault here?
> echo "\n\nrunning for each the second time results in segfault
> again. Why ?\n";
> foreach( $ri as $v) echo "$v\n";
I get a nice row of ducks:
-rw------- 1 roman roman 2109440 Feb 12 23:09 php512.core
-rw------- 1 roman roman 2043904 Feb 12 23:09 php513.core
-rw------- 1 roman roman 2043904 Feb 12 23:09 php514.core
-rw------- 1 roman roman 2043904 Feb 12 23:09 php515.core
-rw------- 1 roman roman 2043904 Feb 12 23:09 php516.core
-rw------- 1 roman roman 2203648 Feb 12 23:09 php520.core
-rw------- 1 roman roman 1966080 Feb 12 23:09 php521.core
This is from 5.2.1:
#0 zend_std_object_get_class (object=0x7b03d0) at /usr/home/roman/install/php/php-5.2.1/Zend/zend_object_handlers.c:1044
zobj = (zend_object *) 0x8
#1 0x000000000046fe88 in zim_spl_Array_getChildren (ht=8061904, return_value=0x7b05e0, return_value_ptr=0x79dc78,
this_ptr=0x7b03f8, return_value_used=1) at /usr/home/roman/install/php/php-5.2.1/ext/spl/spl_array.c:1386
entry = (zval **) 0x7b0268
intern = (spl_array_object *) 0x85c400
#2 0x0000000000517a05 in zend_call_function (fci=0x7fffffffc870, fci_cache=0x7fffffffd018)
at /usr/home/roman/install/php/php-5.2.1/Zend/zend_execute_API.c:984
lcname = 0x1 <Address 0x1 out of bounds>
i = 4294952784
original_return_value = (zval **) 0x7fffffffc920
calling_symbol_table = (HashTable *) 0xb
original_function_state_ptr = (zend_function_state *) 0x7fffffffd018
original_op_array = (zend_op_array *) 0x7fffffffc750
original_opline_ptr = (zend_op **) 0x7fffffffc918
current_scope = (zend_class_entry *) 0x0
calling_scope = (zend_class_entry *) 0x85c400
check_scope_or_static = (zend_class_entry *) 0x0
current_this = (zval *) 0x0
execute_data = {opline = 0x0, function_state = {function_symbol_table = 0x7afbe8, function = 0x85da00, reserved = {
0x800b646e9, 0x7aca18, 0x0, 0x7aca08}}, fbc = 0x0, op_array = 0x0, object = 0x7b03f8, Ts = 0x7fffffffca30,
CVs = 0x7fffffffca00, original_in_execution = 0 '\0', symbol_table = 0x7943e8, prev_execute_data = 0x7fffffffd010,
old_error_reporting = 0x0}
method_name = (zval *) 0x0
params_array = (zval *) 0x0
call_via_handler = 0
fname = 0xb <Address 0xb out of bounds>
fname_len = -14512
#3 0x00000000005369db in zend_call_method (object_pp=0x7fffffffc920, obj_ce=0x85c400, fn_proxy=0x0,
function_name=0x603ec2 "getchildren", function_name_len=11, retval_ptr_ptr=0x7fffffffc918, param_count=8, arg1=0x0, arg2=0x0)
at /usr/home/roman/install/php/php-5.2.1/Zend/zend_interfaces.c:88
fcic = {initialized = 1 '\001', function_handler = 0x85da00, calling_scope = 0x85c400, object_pp = 0x7fffffffc920}
result = 8
fci = {size = 72, function_table = 0x51fc4f, function_name = 0x7fffffffc850, symbol_table = 0x0,
retval_ptr_ptr = 0x7fffffffc918, param_count = 0, params = 0x7fffffffc840, object_pp = 0x7fffffffc920,
no_separation = 1 '\001'}
z_fname = {value = {lval = 1, dval = 4.9406564584124654e-324, str = {val = 0x1 <Address 0x1 out of bounds>,
len = 8667136}, ht = 0x1, obj = {handle = 1, handlers = 0x844000}}, refcount = 0, type = 0 '\0', is_ref = 0 '\0'}
retval = (zval *) 0x844000
function_table = (HashTable *) 0x7b03d0
params = {0x7fffffffc908, 0x7fffffffc910}
#4 0x0000000000465b55 in spl_recursive_it_move_forward_ex (object=0x7b0b50, zthis=0x7afe40)
at /usr/home/roman/install/php/php-5.2.1/ext/spl/spl_iterators.c:277
iterator = (zend_object_iterator *) 0x85c400
zobject = (zval *) 0x7b03f8
ce = (zend_class_entry *) 0x85c400
retval = (zval *) 0x7b05e0
child = (zval *) 0x7b05e0
sub_iter = (zend_object_iterator *) 0x7b03f8
has_children = 8766464
#5 0x0000000000465ff3 in spl_recursive_it_rewind_ex (object=0x7b0b50, zthis=0x7afe40)
at /usr/home/roman/install/php/php-5.2.1/ext/spl/spl_iterators.c:370
sub_iter = (zend_object_iterator *) 0x7b03d0
#6 0x000000000058faf9 in ZEND_FE_RESET_SPEC_CV_HANDLER (execute_data=0x7fffffffd010) at zend_vm_execute.h:19948
opline = (zend_op *) 0x7b43d0
array_ptr = (zval *) 0x7b0088
fe_ht = (HashTable *) 0x7fffffffd0a0
iter = (zend_object_iterator *) 0x7ad330
ce = (zend_class_entry *) 0x844400
is_empty = 8 '\b'
#7 0x000000000054256f in execute (op_array=0x7ac910) at zend_vm_execute.h:92
execute_data = {opline = 0x7b43d0, function_state = {function_symbol_table = 0x7afbe8, function = 0x7ac910, reserved = {
0x800b646e9, 0x7aca18, 0x0, 0x7aca08}}, fbc = 0x0, op_array = 0x7ac910, object = 0x0, Ts = 0x7fffffffca30,
CVs = 0x7fffffffca00, original_in_execution = 0 '\0', symbol_table = 0x7943e8, prev_execute_data = 0x0,
old_error_reporting = 0x0}
#8 0x0000000000524db8 in zend_execute_scripts (type=8, retval=0x0, file_count=3)
at /usr/home/roman/install/php/php-5.2.1/Zend/zend.c:1135
files = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fffffffd200, reg_save_area = 0x7fffffffd110}}
i = 1
file_handle = (zend_file_handle *) 0x7fffffffea80
orig_op_array = (zend_op_array *) 0x0
orig_retval_ptr_ptr = (zval **) 0x0
local_retval = (zval *) 0x0
#9 0x00000000004e4fe6 in php_execute_script (primary_file=0x7fffffffea80)
at /usr/home/roman/install/php/php-5.2.1/main/main.c:1784
realfile = "/usr/home/roman/tmp/marc.weber\000\000W\004c\000\000\000\000\000\000\001\000\000\000\000\000\000\000(\212\000\000\000\000\000x(\212\000\000\000\000\000\000\211t", '\0' <repeats 101 times>, "GR`\000\000\000\000\000\000\001\000\000\000\000\000\000 c\210\000\000\000\000\000\004\000\000\000\000\000\000\000\006\225ü\0171", '\0' <repeats 11 times>, "Đ\236C", '\0' <repeats 45 times>, "\226Żt\000\b\000\000\000 {R\000\000\000\000\000`\201v\000\b\000\000\000Pä˙˙˙\177\000\000\000\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\t*š\n\000\000\000\000EKA\000\000\000\000"...
prepend_file_p = (zend_file_handle *) 0x0
append_file_p = (zend_file_handle *) 0x0
prepend_file = {type = 0 '\0', filename = 0x0, opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0,
reader = 0, closer = 0, fteller = 0, interactive = 0}}, free_filename = 0 '\0'}
append_file = {type = 0 '\0', filename = 0x0, opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0,
reader = 0, closer = 0, fteller = 0, interactive = 0}}, free_filename = 0 '\0'}
old_cwd = 0x7fffffffd210 ""
retval = 0
#10 0x00000000005aeb54 in main (argc=2, argv=0x7fffffffeb38) at /usr/home/roman/install/php/php-5.2.1/sapi/cli/php_cli.c:1114
pce = (zend_class_entry *) 0x7fffffffe8f0
arg = (zval *) 0x0
ref = (zval *) 0x0
execute_data = {opline = 0x8008670b0, function_state = {function_symbol_table = 0x80074d659, function = 0x1, reserved = {
0x80074c6df, 0x0, 0x7fffffffeb50, 0x7fffffffeb18}}, fbc = 0x7fffffffeb10, op_array = 0xd550b87a, object = 0x1, Ts = 0x0,
CVs = 0x0, original_in_execution = 0 '\0', symbol_table = 0x0, prev_execute_data = 0x800742000, old_error_reporting = 0x0}
len = 140737488349424
argn = (zval *) 0x0
input = 0x0
index = 140737488350032
argi = (zval *) 0x800872ae0
exit_status = 0
c = 8
file_handle = {type = 2 '\002', filename = 0x7fffffffed38 "tmp/marc.weber", opened_path = 0x0, handle = {fd = 13322976,
fp = 0x800cb4ae0, stream = {handle = 0x800cb4ae0, reader = 0x536460 <zend_stream_stdio_reader>,
closer = 0x536480 <zend_stream_stdio_closer>, fteller = 0x5364a0 <zend_stream_stdio_fteller>, interactive = 0}},
free_filename = 0 '\0'}
behavior = 1
reflection_what = 0x0
orig_optind = 1
orig_optarg = 0x0
arg_free = 0x7fffffffed38 "tmp/marc.weber"
arg_excp = (char **) 0x7fffffffc6b0
script_file = 0x7fffffffed38 "tmp/marc.weber"
interactive = 0
module_started = 1
request_started = 1
lineno = 1
exec_direct = 0x0
exec_run = 0x0
exec_begin = 0x0
exec_end = 0x0
param_error = 0x0
hide_argv = 0
ini_entries_len = -5904
--
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You don't know, man. You don't KNOW.
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