#23554 [NEW]: PEAR::DB incorrectly parses prepared statement
| From: | jmikola at arsjerm dot net | Date: | Thu, 08 May 2003 23:33:46 +0000 |
| Subject: | #23554 [NEW]: PEAR::DB incorrectly parses prepared statement | ||
| Groups: | php.pear.dev | ||
| Request: | Send a blank email to pear-dev+get-16061@lists.php.net to get a copy of this message | ||
From: jmikola at arsjerm dot net
Operating system: Redhat Linux
PHP version: 4.3.1
PHP Bug Type: PEAR related
Bug description: PEAR::DB incorrectly parses prepared statement
I'm using the PEAR::DB library distributed with the 4.3.1 PHP release. In
the following bug, I noticed that PEAR is tossing a
DB_ERROR_NEED_MORE_DATA during the parsing of the a prepared statement
through a getOne() method call. Starting from the bottom, my method
constructs a 2 element param array for the prepared statement (which
expects two arguments), which I then pass to getOne(). I check up on the
DB CVS sources for the error trigger point, and it's during token number
verification prior to filling in the prepared statement:
pear/DB/DB/common.php:executeEmulateQuery().
Currently, to get around this error, I've changed this query to not use a
prepared statement, opting to hard-code:
getOne('SELECT level & \''.$level.'\' FROM auth WHERE
id=\''.$id.'\'')
..in its place (which works as expected). I've not experienced such an
error in any other use of the PEAR::DB library. My script is operating on
a mySQL database, and the in the 'auth' table show in my example, level is
a SMALLINT and id is an INT field. PHP is version 4.3.1 running on Apache
2-current, with mySQL support compiled in.
The PHP debug backtrace is as follows:
/usr/local/lib/php/PEAR.php:730 trigger_error('DB Error: insufficient data
supplied','256')
/usr/local/lib/php/DB.php:604 pear_error('DB Error: insufficient data
supplied','-20','4','256','SELECT ? & level FROM auth
WHERE id=?')
/usr/local/lib/php/PEAR.php:508 db_error('-20','4','256','SELECT
? & level
FROM auth WHERE id=?')
usr/local/lib/php/DB/common.php:296
raiseerror('','-20','','','SELECT ? &
level FROM auth WHERE id=?','DB_Error','1')
/usr/local/lib/php/DB/common.php:603 raiseerror('-20')
/usr/local/lib/php/DB/common.php:555 executeemulatequery('1','Array')
/usr/local/lib/php/DB/common.php:794 execute('1','Array')
/home/website/file.php:634 getone('SELECT ? & level FROM auth WHERE
id=?','Array')
/home/website/file.php:89 _dbselectaccess('2','1')
A script to reproduce the error is as follows:
function _dbSelectAccess ($id, $level=0) {
$params = array($level, $id);
// $id and $level are numeric and need no escaping
return $this->db->getOne('SELECT ? & level FROM auth WHERE id=?',
$params);
}
--
Edit bug report at http://bugs.php.net/?id=23554&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=23554&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=23554&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=23554&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=23554&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=23554&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=23554&r=support
Expected behavior: http://bugs.php.net/fix.php?id=23554&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=23554&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=23554&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=23554&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=23554&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=23554&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=23554&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=23554&r=gnused