Bug #54978 [NEW]: mysql_query() returns true with a SELECT statement

From: Date: Thu, 02 Jun 2011 15:38:29 +0000
Subject: Bug #54978 [NEW]: mysql_query() returns true with a SELECT statement
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-161133@lists.php.net to get a copy of this message 
From:             
Operating system: Any
PHP version:      5.3.6
Package:          MySQL related
Bug Type:         Bug
Bug description:mysql_query() returns true with a SELECT statement

Description:
------------
This doesn't happen often, but it does happen sometimes when the database
server 
interrupts the connection during a query. Seems to be related to the fact
that 
libmysqlclient's mysql_query() may return success, even if an error
occurred, as 
described at:

http://dev.mysql.com/doc/refman/5.5/en/null-mysql-store-result.html

Test script:
---------------
$resource = mysql_query('SELECT test FROM test');
if ($resource === true) {
    throw new Exception('mysql_query() returned true for SELECT');
}

Expected result:
----------------
An exception should not be thrown, because the documentation for
mysql_query() at 
php.net clearly states that a SELECT query will only ever return false or a

resource.

Actual result:
--------------
An exception is thrown, because mysql_query() returns true with a SELECT
query.

-- 
Edit bug report at http://bugs.php.net/bug.php?id=54978&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=54978&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=54978&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=54978&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=54978&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54978&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=54978&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=54978&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=54978&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=54978&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=54978&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=54978&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=54978&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=54978&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=54978&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=54978&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=54978&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=54978&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=54978&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=54978&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=54978&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=54978&r=mysqlcfg

Thread (4 messages)

« previous php.bugs (#161133) next »