From: john dot hargrove at sellingsource dot com
Operating system: Gentoo Linux 2.6 kernel
PHP version: 5.2.0
PHP Bug Type: Scripting Engine problem
Bug description: Invokation of non-static method as static issue
Description:
------------
PHP5 allows you to invoke a non-static method as static if you have
E_STRICT disabled through the Class::Method() syntax which is intended
functionality. I believe this bug may actually be a throwback to PHP4
functionality, but it results in funky error reporting in PHP5. If you
make a static call to a non-static method, from an instance of another
class, the $this variable is in scope from the calling instance. This
breaks visibility and scope rules. Note that I saw all the PHP4 bug
reports for this marked as bogus for reasons that made sense, but did not
see a PHP5 bug marked similarly. The only reason I can see for this is
compatibility?
Also of note is that the method is aware of being out of the context of an
object if called from the global scope. This only occurs from the context
of an object (which makes sense).
Reproduce code:
---------------
<?php
class A
{
private $private_var;
public function Tester()
{
echo $this->private_var;
}
}
class B
{
public function TesterBlah()
{
A::Tester();
}
}
$b = new B();
$b->TesterBlah();
?>
Expected result:
----------------
Fatal error: Using $this when not in object context in /root/bug/test.php
on line 8
Actual result:
--------------
Notice: Undefined property: B::$private_var in /root/bug/test.php on line
8
--
Edit bug report at http://bugs.php.net/?id=39664&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=39664&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=39664&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=39664&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=39664&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=39664&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=39664&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=39664&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=39664&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=39664&r=support
Expected behavior: http://bugs.php.net/fix.php?id=39664&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=39664&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=39664&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=39664&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39664&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=39664&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=39664&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=39664&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=39664&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=39664&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=39664&r=mysqlcfg
