#24710 [Ver]: $obj->foo = "bar"; print $obj->{0}; segfaults
| From: | meebey@php.net | Date: | Fri, 18 Jul 2003 23:01:26 +0000 |
| Subject: | #24710 [Ver]: $obj->foo = "bar"; print $obj->{0}; segfaults | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-44271@lists.php.net to get a copy of this message | ||
ID: 24710
Updated by: meebey@php.net
Reported By: swalk at prp dot physik dot tu-darmstadt dot de
Status: Verified
Bug Type: Reproducible crash
Operating System: Any
PHP Version: 4.3.2
New Comment:
ups, I made a typo in the 2. testscript,
it should be "var $foo;" instead of "var foo;"
it also segfaults...
Previous Comments:
------------------------------------------------------------------------
[2003-07-18 17:57:46] meebey@php.net
I could reproduce this behavior with PHP 4.3.0, 4.3.1, 4.3.2, 4.2.3.
With 5.0.0b1 it doesn't segfault but shows no output neither a warning
or fatal.
With this code instead it works like expected:
<?php
class test
{
var foo;
}
$obj = &new test();
$obj->foo = "bar";
print $obj->{0};
?>
Outputs:
PHP Parse error: parse error, expecting `T_VARIABLE' in
/home/meebey/phpbug.php on line 4
------------------------------------------------------------------------
[2003-07-18 17:30:18] swalk at prp dot physik dot tu-darmstadt dot de
sorry, mozillas cache was messing up.
------------------------------------------------------------------------
[2003-07-18 17:28:12] swalk at prp dot physik dot tu-darmstadt dot de
Description:
------------
This little script creates a segfault on every version of php i came
across (4.3.2, 4.3.3rc1, 5.0.0b2). When you replace 0 with "0", it
works.
Reproduce code:
---------------
<?php
$obj->foo = "bar"; // or anything else that creates an object
print $obj->{0};
?>
Expected result:
----------------
Notice: undefined property: 0... or something alike
Actual result:
--------------
(gdb) bt
#0 0x08146cf8 in zend_hash_find (ht=0x8211f64, arKey=0x0,
nKeyLength=4, pData=0xbfffca9c)
at /home/et/sources/php-4.3.2/Zend/zend_hash.c:875
#1 0x08151e70 in zend_fetch_property_address_inner (ht=0x8211f64,
op2=0x8219910, Ts=0xbfffcb40, type=0)
at /home/et/sources/php-4.3.2/Zend/zend_execute.c:199
#2 0x0814c6b9 in zend_fetch_property_address (result=0x82198f0,
op1=0x8215244, op2=0x8219910, Ts=0xbfffcb40, type=0)
at /home/et/sources/php-4.3.2/Zend/zend_execute.c:930
#3 0x08150e97 in execute (op_array=0x82156a4) at
/home/et/sources/php-4.3.2/Zend/zend_execute.c:1328
#4 0x081426f1 in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /home/et/sources/php-4.3.2/Zend/zend.c:869
#5 0x0811d2fb in php_execute_script (primary_file=0xbffff070) at
/home/et/sources/php-4.3.2/main/main.c:1671
#6 0x08153932 in main (argc=4, argv=0xbffff0f4) at
/home/et/sources/php-4.3.2/sapi/cli/php_cli.c:806
#7 0x420158f7 in __libc_start_main () from /lib/i686/libc.so.6
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=24710&edit=1