#45467 [Opn->Ver]: Empty reply from server when invoking dynamic method name within class
ID: 45467
Updated by: jani@php.net
Reported By: thijs dot wijnmaalen at gmail dot com
-Status: Open
+Status: Verified
Bug Type: Scripting Engine problem
Operating System: Mac OS X
PHP Version: 5.2.6
New Comment:
It actually crashes, here's relevant part from valgrind:
==1178== Process terminating with default action of signal 11
(SIGSEGV)
==1178== Access not within mapped region at address 0xBE1A0FFC
==1178== at 0x823AF25: zend_get_property_info
(zend_object_handlers.c:179)
==1178== Stack overflow in thread 1: can't grow stack to 0xBE1A0FF8
And this is the gdb output (relevant parts):
execute (op_array=0x8aad87c) at
/home/jani/src/php-5.2/Zend/zend_vm_execute.h:53
53 memset(EX(CVs), 0, sizeof(zval**) *
op_array->last_var);
The full backtrace is a bit too long to paste here.
Previous Comments:
------------------------------------------------------------------------
[2008-07-09 13:28:01] thijs dot wijnmaalen at gmail dot com
Description:
------------
When accessing a method within or from another class, whereby the name
is stored as value in an array as attribute in the class.
The proper way of doing this would be to enclose the method name in
brackets (which works as expected):
return $this->{$this->_[0]}();
Reproduce code:
---------------
<?php
class A {
private $_ = array();
function __toString () {
$this->_[0] = 'a';
return $this->$this->_[0]();
}
function a () {
return 'call';
}
}
echo $a = new A();
?>
Expected result:
----------------
Syntax error message
Actual result:
--------------
Empty reply from server
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=45467&edit=1
Thread (4 messages)