From: pecoes at web dot de
Operating system: windows xp
PHP version: 5.0.2
PHP Bug Type: Reproducible crash
Bug description: php_check_syntax collides with require_once
Description:
------------
The reproduce code is pretty straight-forward, which makes the issue look
easy to avoid. My real problem, however, is more subtle:
I'm writing an extensible library. All my internal classes are
__autoload'ed, but I want to treat all user-defined classes as tainted and
load them manually:
Test.php:
<?php
class Tets {} // Note the typo!
?>
bug.php:
<?php
function __autoload ($class) {
require_once "$class.php";
}
function loadManually ($class) {
if (!php_check_syntax("$class.php")) {
throw new Exception("$class.php cannot be included");
}
// class_exists invokes __autoload and things go wrong
if (!class_exists($class)) {
throw new Exception("$class does not exist in $class.php");
}
}
loadManually("Test");
?>
Reproduce code:
---------------
$file = "Test.php";
if (!php_check_syntax($file)) {
die("$file cannot be included");
}
// the following line should do nothing!
require_once $file;
Expected result:
----------------
no crash
Actual result:
--------------
"Fatal Error: Cannot redeclare class..."
and then php(cli) crashes hard!
--
Edit bug report at http://bugs.php.net/?id=30772&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30772&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=30772&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=30772&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=30772&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=30772&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=30772&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=30772&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=30772&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=30772&r=support
Expected behavior: http://bugs.php.net/fix.php?id=30772&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=30772&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=30772&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=30772&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30772&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=30772&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=30772&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=30772&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=30772&r=float
MySQL Configuration Error: http://bugs.php.net/fix.php?id=30772&r=mysqlcfg
