From: hannes dot magnusson at gmail dot com
Operating system: FreeBSD
PHP version: 5CVS-2007-04-17 (CVS)
PHP Bug Type: Scripting Engine problem
Bug description: Altering $this via reference weirdness
Description:
------------
Using $this as parameter is possible, but when using it (except from
printing it out) $this referes to itself
It is also possible to change $this via reference.
The object name seems to get changed - but when using it it works fine.
Reproduce code:
---------------
<?php
class foo {
function __construct($this) {
printf("ctor \$this parameter is: %s\n", var_export($this,
1));
self::overwrite($this);
printf("Returning from self::overwrite \$this is: %s",
get_class($this));
$this->hello();
}
function overwrite(&$obj) {
$obj = new stdclass;
printf("self::overwrite \$this is: %s\n",
get_class($this));
}
function hello() {
printf(" ...lier! \$this is still %s\n",
get_class($this));
}
}
$obj = new foo("Hello world");
var_dump($obj);
Actual result:
--------------
ctor $this parameter is: 'Hello world'
self::overwrite $this is: foo
Returning from self::overwrite $this is: stdClass ...lier! $this is still
foo
object(foo)#1 (0) {
}
--
Edit bug report at http://bugs.php.net/?id=41117&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=41117&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=41117&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=41117&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=41117&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=41117&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=41117&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=41117&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=41117&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=41117&r=support
Expected behavior: http://bugs.php.net/fix.php?id=41117&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=41117&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=41117&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=41117&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41117&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=41117&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=41117&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=41117&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=41117&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=41117&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=41117&r=mysqlcfg
