From: graced at monroe dot wednet dot edu
Operating system: XP Pro
PHP version: 5.1.2
PHP Bug Type: Variables related
Bug description: __autoload and require_once() variable scoping issues
Description:
------------
When __autoload requires or includes a file, any global variables in that
file are in the __autoload function's scope instead of the global scope.
This is consistent with the documented behavior for include() ("When a
file is included, the code it contains inherits the variable scope of the
line on which the include occurs."), but is not very useful for the
__autoload case -- if the class being instantiated require()s another file
(say, a function library) and the required file depends on certain global
variables that it also defines, it will fail messily as the functions that
depend on those variables won't see them, as they are in __autoload()'s
scope instead of the global scope.
Reproduce code:
---------------
main.php:
<?php
function __autoload($class) {
require_once('class.php');
}
$foo = new myclass();
class.php:
<?php
require_once('required.php');
class myclass {
};
required.php:
<?php
$var = 'some value';
function test() {
if(isset($GLOBALS['var'])) {
echo 'var is in the global scope';
} else {
echo 'var is not in the global scope';
}
}
test();
Expected result:
----------------
"var is the global scope" should be echoed.
Actual result:
--------------
"var is not in the global scope" is echoed.
--
Edit bug report at http://bugs.php.net/?id=36594&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=36594&r=trysnapshot44
Try a CVS snapshot (PHP 5.1):
http://bugs.php.net/fix.php?id=36594&r=trysnapshot51
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=36594&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=36594&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=36594&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=36594&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=36594&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=36594&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=36594&r=support
Expected behavior: http://bugs.php.net/fix.php?id=36594&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=36594&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=36594&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=36594&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36594&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=36594&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=36594&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=36594&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=36594&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=36594&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=36594&r=mysqlcfg
