#35993 [NEW]: mysql_query doesnt honor database resource id

From: Date: Fri, 13 Jan 2006 11:08:47 +0000
Subject: #35993 [NEW]: mysql_query doesnt honor database resource id
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-91833@lists.php.net to get a copy of this message 
From:             andreas at fink dot org
Operating system: MacOS X & Linux
PHP version:      5.1.2
PHP Bug Type:     MySQL related
Bug description:  mysql_query doesnt honor database resource id

Description:
------------
When you use multiple connections to mysql databases, you should use a
resource id in your query which you got back at the time of connection.

However this doesnt work anymore. The queries always go to one database.

Reproduce code:
---------------
mysqladmin create test1
mysqladmin create test2
mysql  << --EOF--
use test1
CREATE TABLE \testdata\ (\id\ int(20) NOT NULL
auto_increment,\data\
varchar(255) NOT NULL default '', PRIMARY KEY  (\id\) ) ENGINE=MyISAM
DEFAULT CHARSET=latin1;
grant all on test1.* to 'test'@'localhost' identified by 'test';
insert into test1.testdata(id,data) values (1,'This is DB named test1');
use test2
CREATE TABLE \testdata\ (\id\ int(20) NOT NULL
auto_increment,\data\
varchar(255) NOT NULL default '', PRIMARY KEY  (\id\) ) ENGINE=MyISAM
DEFAULT CHARSET=latin1;
grant all on test2.* to 'test'@'localhost' identified by 'test';
insert into test2.testdata(id,data) values (1,'This is DB named test2');
--EOF--

now launch php on this:

<?
$db1_handle=mysql_pconnect("127.0.0.1","test","test");
mysql_select_db("test1",$db1_handle);
$db2_handle=mysql_pconnect("127.0.0.1","test","test");
mysql_select_db("test2",$db2_handle);

$query = "select data from testdata where id=1";
$result1 = mysql_query($query,$db1_handle);
$line = mysql_fetch_row ( $result1 );
echo "This query was executed on db1_handle:" .$line[0] ."\n";

$query = "select data from testdata where id=1";
$result2 = mysql_query($query,$db2_handle);
$line = mysql_fetch_row ( $result2 );
echo "This query was executed on db2_handle:" .$line[0] ."\n";
?>


Expected result:
----------------
This query was executed on db1_handle:This is DB named test1
This query was executed on db2_handle:This is DB named test2


Actual result:
--------------
On Linux i386:

This query was executed on db1_handle:This is DB named test2
This query was executed on db2_handle:This is DB named test2

On MacOS X PPC:
This query was executed on db1_handle:This is DB named test1
This query was executed on db2_handle:This is DB named test1

Interesting enough that i386 and ppc are exactly reversed. This might hint
to a location which is endian sensitive.

-- 
Edit bug report at http://bugs.php.net/?id=35993&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=35993&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=35993&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=35993&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=35993&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=35993&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=35993&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=35993&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=35993&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=35993&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=35993&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=35993&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=35993&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=35993&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=35993&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=35993&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=35993&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=35993&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=35993&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=35993&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=35993&r=mysqlcfg

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