Bug #62528 [NEW]: PDO disregards SQL comments and throws parameter number exceptions
From: robin at industrialwebs dot nl
Operating system: Independent
PHP version: Irrelevant
Package: PDO related
Bug Type: Bug
Bug description:PDO disregards SQL comments and throws parameter number exceptions
Description:
------------
Description can also be found here:
http://stackoverflow.com/questions/11415314/pdo-invalid-parameter-number-parameters-in-comments/
The problem is simple: PDO throws an exception when using named or
positional parameters in SQL comments. This is unexpected behaviour and
costed me quite a while to figure out.
The thrown exceptions for named and positional parameters are,
respectively:
Warning: PDOStatement::execute() [pdostatement.execute]: SQLSTATE[HY093]:
Invalid parameter number:
Warning: PDOStatement::execute() [pdostatement.execute]: SQLSTATE[HY093]:
Invalid parameter number: mixed named and positional parameters
Test script:
---------------
Try executing this query using PDO:
SELECT
x
FROM
y
WHERE
-- CHECKING IF X = ? --
x = :y
AND
1 = 2
Or this one:
SELECT
x
FROM
y
WHERE
-- CHECKING IF X = :Z --
x = :y
AND
1 = 2
Expected result:
----------------
This should execute the query with only :Z as bound parameter.
Actual result:
--------------
Exceptions because parameters in comments get parsed.
--
Edit bug report at https://bugs.php.net/bug.php?id=62528&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62528&r=trysnapshot54
Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62528&r=trysnapshot53
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62528&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=62528&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62528&r=needdocs
Fixed in release: https://bugs.php.net/fix.php?id=62528&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=62528&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=62528&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=62528&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=62528&r=support
Expected behavior: https://bugs.php.net/fix.php?id=62528&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=62528&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=62528&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=62528&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62528&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62528&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=62528&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=62528&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=62528&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=62528&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=62528&r=mysqlcfg
Thread (4 messages)
- robin at industrialwebs dot nl