From: burakg at torreycommerce dot com
Operating system: CentOS 6.3
PHP version: 5.3.15
Package: MySQLi related
Bug Type: Bug
Bug description:print_r with debug_backtrace overwrites member variable
Description:
------------
Calling print_r(debug_backtrace()) from a method of a class that inherits
from
mysqli overwrites the error member variable. Calling debug_backtrace() on
its own
doesn't seem to cause any problems, but when combined with print_r, this
problem
results.
Test script:
---------------
<?php
class Db extends mysqli {
function f() {
$this->query("select");
var_dump($this->error);
print_r(debug_backtrace(), true);
var_dump($this->error);
}
}
$db = new Db("host", "user", "password", "database");
$db->f();
Expected result:
----------------
string(146) "You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near
'' at
line 1"
string(146) "You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near
'' at
line 1"
Actual result:
--------------
string(146) "You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near
'' at
line 1"
string(0) ""
--
Edit bug report at https://bugs.php.net/bug.php?id=62794&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=62794&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=62794&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=62794&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=62794&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=62794&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=62794&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=62794&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=62794&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=62794&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=62794&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=62794&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=62794&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=62794&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=62794&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=62794&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62794&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=62794&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=62794&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=62794&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=62794&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=62794&r=mysqlcfg
