From: gcp at sjeng dot org
Operating system: FreeBSD 6.0
PHP version: 5.1.4
PHP Bug Type: Variables related
Bug description: auto_globals_jit fails to correctly intialize variables
Description:
------------
In some circumstances, global variables will fail to be initialized when
auto_globals_jit is enabled (the default). This is a regression, the
problem did not exist in 5.1.2.
php.ini is default recommended one. Server is lighttpd 1.4.11 using PHP in
FastCGI mode.
Reproduce code:
---------------
Using for example, phpMyAdmin 2.8.0.3, and looking in the
libaries/Config.class.php code:
function checkPmaAbsoluteUri()
{
// Setup a default value to let the people and lazy syadmins work
anyway,
// they'll get an error if the autodetect code doesn't work
$pma_absolute_uri = $this->get('PmaAbsoluteUri');
if ( strlen($pma_absolute_uri) < 1 ) {
$url = array();
// At first we try to parse REQUEST_URI, it might contain full
URI
if ( ! empty($_SERVER['REQUEST_URI'] ) ) {
$url = parse_url($_SERVER['REQUEST_URI']);
}
// If we don't have scheme, we didn't have full URL so we need
to
// dig deeper
if ( empty( $url['scheme'] ) ) {
// Scheme
if ( ! empty( $_SERVER['HTTP_SCHEME'] ) ) {
$url['scheme'] = $_SERVER['HTTP_SCHEME'];
} else {
$url['scheme'] =
!empty($_SERVER['HTTPS']) &&
strtolower($_SERVER['HTTPS']) != 'off'
? 'https'
: 'http';
}
etc...
It's possible to enter this function with $_SERVER missing essential
things such as HTTP_HOST:
array(4) {
["PHP_SELF"]=>
string(21) "/mysqladmin/index.php"
["PHP_AUTH_USER"]=> (censored)
["PHP_AUTH_PW"]=> (censored)
["REQUEST_TIME"]=>
int(1147178223)
}
If auto_global_jit is disabled, this does not not happen, and HTTP_HOST
etc are set correctly.
--
Edit bug report at http://bugs.php.net/?id=37381&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=37381&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=37381&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=37381&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=37381&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=37381&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=37381&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=37381&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=37381&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=37381&r=support
Expected behavior: http://bugs.php.net/fix.php?id=37381&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=37381&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=37381&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=37381&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=37381&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=37381&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=37381&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=37381&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=37381&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=37381&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=37381&r=mysqlcfg
