ID: 31451
User updated by: syre at citiz dot net
Reported By: syre at citiz dot net
-Status: Feedback
+Status: Open
Bug Type: Scripting Engine problem
Operating System: win2k pro sp4
PHP Version: 4.3.10
New Comment:
<?php
class ObjectShell {
var $_target;
function ObjectShell(&$target) {
$this->_target=$target;
overload('ObjectShell');
}
function __get($name, &$value) {
return true;
}
function __set($name, $value) {
return true;
}
function __call($func, $args, &$return) {
$return=1;
return true;
}
function func1(){
echo "func1() called ";
return $this->_target->func1();
}
}
class Test {
function func1() {
return 2;
}
}
$t=new Test;
$p=new ObjectShell($t);
//this will work
echo $p->func1();
echo "<br>\n";
//this will result "stack overflow" on php4.3.10
//if remove ObjectShell::__set,
//or ObjectShell::__func1()
//or replace ObjectShell::func1()
//with func1($a, $b){ return 1 }
//it will also ok
?>
Previous Comments:
------------------------------------------------------------------------
[2005-01-10 16:59:40] [EMAIL PROTECTED]
Please, provide a short but complete reproduce script with expected and
actual results.
Your code works fine for me with latest PHP 4.3 snapshot.
------------------------------------------------------------------------
[2005-01-08 13:28:01] syre at citiz dot net
the code will ok on the recent snapshot
but if add a new overload method into class ObjectShell,
function func1($a, $b){
echo "func1() called. ";
return $this->_target->func1($a, $b);
}
the programme will crashed
------------------------------------------------------------------------
[2005-01-08 13:06:17] syre at citiz dot net
the code is
<?php
/**
* add a shell on an object
*/
class ObjectShell {
var $_target;
function ObjectShell(&$target) {
$this->_target=$target;
overload('ObjectShell');
}
function __get($name, &$value) {
$value=$this->_target->$name;
return true;
}
function __set($name, &$value) {
$this->_target->$name=$value;
return true;
}
function __call($func, $args, &$return) {
if(method_exists($this->_target, $func)) {
$return =call_user_func_array(array(&$this->_target,
$func),
$args);
return true;
}else{
return false;
}
}
}
class Test {
var $var1=1024;
function func1($a,$b) {
return $a + $b;
}
}
$t=new Test;
$p=new ObjectShell($t);
//this will work
echo $p->var1;
echo "<br>\n";
echo $p->func1(9,7);
//this will result "script time out" on php4.3.10
//but it is ok on 4.3.8 / 4.3.2
//if remove __get, __set£¬it will also work ok
echo $p->func1(9,7);
echo "<br>\n";
echo $p->var1;
?>
------------------------------------------------------------------------
[2005-01-08 12:59:28] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php4-STABLE-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php4-win32-STABLE-latest.zip
..and there is no code in the given url that we could run with our own
PHP builds..
------------------------------------------------------------------------
[2005-01-08 12:18:49] syre at citiz dot net
Description:
------------
//that will ok
echo $p->var1;
echo "<br>\n";
echo $p->func1(9,7);
//that will cost script time out
//the same code will ok on 4.3.8 / 4.3.2
echo $p->func1(9,7);
echo "<br>\n";
echo $p->var1;
Reproduce code:
---------------
http://community.csdn.net/Expert/topic/3707/3707113.xml?temp=.141308
Expected result:
----------------
1024<br>
16<br>
16<br>
1024
Actual result:
--------------
script time out
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=31451&edit=1
