Edit report at https://bugs.php.net/bug.php?id=66076&edit=1
ID: 66076
Comment by: mengpg2 at engene dot se
Reported by: mengpg2 at engene dot se
Summary: Segfault on SimpleXML toString
Status: Feedback
Type: Bug
Package: Reproducible crash
Operating System: Linux and MacOS
PHP Version: 5.4.21
Block user comment: N
Private report: N
New Comment:
$DDB = new AmazonDynamoDB();
$DDB->use_ssl = false;
$Key = array('HashKeyElement' => array(AmazonDynamoDB::TYPE_NUMBER =>
(string)$itemid));
$Res = $DDB->get_item(array('TableName' => 'pond_item_meta',
'Key' => $Key));
$tt = (string)$Res->body->Item->exif_json->S;
But this is the offending code. Casting on a CFSimpleXML object. Worked flawlessly to 5.4.7. Is it a
CFSimpleXML bug?
Previous Comments:
------------------------------------------------------------------------
[2013-11-11 09:33:11] laruence@php.net
seems it's a recursively call to __toString..
like:
<?php
class A {
public function __toString() {
return (string)$this;
}
}
so I think this should not considered as a bug... but a wrong usage
------------------------------------------------------------------------
[2013-11-11 09:13:45] mengpg2 at engene dot se
(gdb) bt
#0 0x0000000109989f30 in zend_call_method (object_pp=0x7fff68219100, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff682190e8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:35
#1 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff682191b8, type=6) at zend_object_handlers.c:1534
#2 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff682191b8,
use_copy=0x7fff682191b4) at zend.c:261
#3 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb67778) at
zend_vm_execute.h:27329
#4 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#5 0x000000010994c1a1 in zend_call_function (fci=0x7fff68219508, fci_cache=0x7fff68219490) at
zend_execute_API.c:956
#6 0x000000010998a342 in zend_call_method (object_pp=0x7fff68219660, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff68219648, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#7 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff68219718, type=6) at zend_object_handlers.c:1534
#8 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff68219718,
use_copy=0x7fff68219714) at zend.c:261
#9 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb67508) at
zend_vm_execute.h:27329
#10 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#11 0x000000010994c1a1 in zend_call_function (fci=0x7fff68219a68, fci_cache=0x7fff682199f0) at
zend_execute_API.c:956
#12 0x000000010998a342 in zend_call_method (object_pp=0x7fff68219bc0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff68219ba8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#13 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff68219c78, type=6) at zend_object_handlers.c:1534
#14 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff68219c78,
use_copy=0x7fff68219c74) at zend.c:261
#15 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb67298) at
zend_vm_execute.h:27329
#16 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#17 0x000000010994c1a1 in zend_call_function (fci=0x7fff68219fc8, fci_cache=0x7fff68219f50) at
zend_execute_API.c:956
#18 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821a120, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821a108, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#19 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821a1d8, type=6) at zend_object_handlers.c:1534
#20 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821a1d8,
use_copy=0x7fff6821a1d4) at zend.c:261
#21 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb67028) at
zend_vm_execute.h:27329
#22 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#23 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821a528, fci_cache=0x7fff6821a4b0) at
zend_execute_API.c:956
#24 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821a680, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821a668, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#25 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821a738, type=6) at zend_object_handlers.c:1534
---Type <return> to continue, or q <return> to quit---
#26 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821a738,
use_copy=0x7fff6821a734) at zend.c:261
#27 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb66db8) at
zend_vm_execute.h:27329
#28 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#29 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821aa88, fci_cache=0x7fff6821aa10) at
zend_execute_API.c:956
#30 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821abe0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821abc8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#31 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821ac98, type=6) at zend_object_handlers.c:1534
#32 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821ac98,
use_copy=0x7fff6821ac94) at zend.c:261
#33 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb66b48) at
zend_vm_execute.h:27329
#34 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#35 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821afe8, fci_cache=0x7fff6821af70) at
zend_execute_API.c:956
#36 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821b140, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821b128, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#37 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821b1f8, type=6) at zend_object_handlers.c:1534
#38 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821b1f8,
use_copy=0x7fff6821b1f4) at zend.c:261
#39 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb668d8) at
zend_vm_execute.h:27329
#40 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#41 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821b548, fci_cache=0x7fff6821b4d0) at
zend_execute_API.c:956
#42 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821b6a0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821b688, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#43 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821b758, type=6) at zend_object_handlers.c:1534
#44 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821b758,
use_copy=0x7fff6821b754) at zend.c:261
#45 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb66668) at
zend_vm_execute.h:27329
#46 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#47 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821baa8, fci_cache=0x7fff6821ba30) at
zend_execute_API.c:956
#48 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821bc00, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821bbe8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#49 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821bcb8, type=6) at zend_object_handlers.c:1534
#50 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821bcb8,
use_copy=0x7fff6821bcb4) at zend.c:261
#51 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb663f8) at
zend_vm_execute.h:27329
#52 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#53 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821c008, fci_cache=0x7fff6821bf90) at
zend_execute_API.c:956
---Type <return> to continue, or q <return> to quit---
#54 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821c160, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821c148, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#55 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821c218, type=6) at zend_object_handlers.c:1534
#56 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821c218,
use_copy=0x7fff6821c214) at zend.c:261
#57 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb66188) at
zend_vm_execute.h:27329
#58 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#59 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821c568, fci_cache=0x7fff6821c4f0) at
zend_execute_API.c:956
#60 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821c6c0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821c6a8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#61 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821c778, type=6) at zend_object_handlers.c:1534
#62 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821c778,
use_copy=0x7fff6821c774) at zend.c:261
#63 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb65f18) at
zend_vm_execute.h:27329
#64 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#65 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821cac8, fci_cache=0x7fff6821ca50) at
zend_execute_API.c:956
#66 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821cc20, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821cc08, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#67 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821ccd8, type=6) at zend_object_handlers.c:1534
#68 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821ccd8,
use_copy=0x7fff6821ccd4) at zend.c:261
#69 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb65ca8) at
zend_vm_execute.h:27329
#70 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#71 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821d028, fci_cache=0x7fff6821cfb0) at
zend_execute_API.c:956
#72 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821d180, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821d168, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#73 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821d238, type=6) at zend_object_handlers.c:1534
#74 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821d238,
use_copy=0x7fff6821d234) at zend.c:261
#75 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb65a38) at
zend_vm_execute.h:27329
#76 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#77 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821d588, fci_cache=0x7fff6821d510) at
zend_execute_API.c:956
#78 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821d6e0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821d6c8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#79 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821d798, type=6) at zend_object_handlers.c:1534
---Type <return> to continue, or q <return> to quit---
#80 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821d798,
use_copy=0x7fff6821d794) at zend.c:261
#81 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb657c8) at
zend_vm_execute.h:27329
#82 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#83 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821dae8, fci_cache=0x7fff6821da70) at
zend_execute_API.c:956
#84 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821dc40, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821dc28, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#85 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821dcf8, type=6) at zend_object_handlers.c:1534
#86 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821dcf8,
use_copy=0x7fff6821dcf4) at zend.c:261
#87 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb65558) at
zend_vm_execute.h:27329
#88 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#89 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821e048, fci_cache=0x7fff6821dfd0) at
zend_execute_API.c:956
#90 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821e1a0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821e188, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#91 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821e258, type=6) at zend_object_handlers.c:1534
#92 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821e258,
use_copy=0x7fff6821e254) at zend.c:261
#93 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb652e8) at
zend_vm_execute.h:27329
#94 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#95 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821e5a8, fci_cache=0x7fff6821e530) at
zend_execute_API.c:956
#96 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821e700, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821e6e8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#97 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821e7b8, type=6) at zend_object_handlers.c:1534
#98 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821e7b8,
use_copy=0x7fff6821e7b4) at zend.c:261
#99 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb65078) at
zend_vm_execute.h:27329
#100 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#101 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821eb08, fci_cache=0x7fff6821ea90) at
zend_execute_API.c:956
#102 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821ec60, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821ec48, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#103 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821ed18, type=6) at zend_object_handlers.c:1534
#104 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821ed18,
use_copy=0x7fff6821ed14) at zend.c:261
#105 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb44c50) at
zend_vm_execute.h:27329
#106 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#107 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821f068, fci_cache=0x7fff6821eff0) at
zend_execute_API.c:956
---Type <return> to continue, or q <return> to quit---
#108 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821f1c0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821f1a8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#109 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821f278, type=6) at zend_object_handlers.c:1534
#110 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821f278,
use_copy=0x7fff6821f274) at zend.c:261
#111 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb449e0) at
zend_vm_execute.h:27329
#112 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#113 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821f5c8, fci_cache=0x7fff6821f550) at
zend_execute_API.c:956
#114 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821f720, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821f708, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#115 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821f7d8, type=6) at zend_object_handlers.c:1534
#116 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821f7d8,
use_copy=0x7fff6821f7d4) at zend.c:261
#117 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb44770) at
zend_vm_execute.h:27329
#118 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#119 0x000000010994c1a1 in zend_call_function (fci=0x7fff6821fb28, fci_cache=0x7fff6821fab0) at
zend_execute_API.c:956
#120 0x000000010998a342 in zend_call_method (object_pp=0x7fff6821fc80, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff6821fc68, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
#121 0x00000001099a049a in zend_std_cast_object_tostring (readobj=0x10b1f3d70,
writeobj=0x7fff6821fd38, type=6) at zend_object_handlers.c:1534
#122 0x000000010995f88a in zend_make_printable_zval (expr=0x10b1f3d70, expr_copy=0x7fff6821fd38,
use_copy=0x7fff6821fd34) at zend.c:261
#123 0x00000001099b22b6 in ZEND_CAST_SPEC_CV_HANDLER (execute_data=0x10bb44500) at
zend_vm_execute.h:27329
#124 0x00000001099a48b7 in execute (op_array=0x10b47bb98) at zend_vm_execute.h:410
#125 0x000000010994c1a1 in zend_call_function (fci=0x7fff68220088, fci_cache=0x7fff68220010) at
zend_execute_API.c:956
#126 0x000000010998a342 in zend_call_method (object_pp=0x7fff682201e0, obj_ce=0x10b477df8,
fn_proxy=0x10b477f60,
function_name=0x109e41850 "__tostring", function_name_len=10,
retval_ptr_ptr=0x7fff682201c8, param_count=0, arg1=0x0, arg2=0x0)
at zend_interfaces.c:97
.....thousands of rows
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