Bug #53132 [Fbk->Asn]: PDO converts (int)0 to NULL

[novitools dot novi at web dot de]

Edit report at http://bugs.php.net/bug.php?id=53132&edit=1

 ID:                 53132
 User updated by:    novitools dot novi at web dot de
 Reported by:        novitools dot novi at web dot de
 Summary:            PDO converts (int)0 to NULL
-Status:             Feedback
+Status:             Assigned
 Type:               Bug
 Package:            PDO related
 Operating System:   Linux
 PHP Version:        5.2.14
 Assigned To:        mysql
 Block user comment: N

 New Comment:

Same Problem with 5.3.1.


Previous Comments:
------------------------------------------------------------------------
[2010-11-08 18:16:15] u...@php.net

5.2 only gets critical security updates.



"This release marks the end of the active support for PHP 5.2. Following
this release the PHP 5.2 series will receive no further active bug
maintenance. Security fixes for PHP 5.2 might be published on a case by
cases basis. All users of PHP 5.2 are encouraged to upgrade to PHP
5.3.", http://www.php.net/archive/2010.php#id2010-07-22-1





Please try with 5.3

------------------------------------------------------------------------
[2010-10-21 19:44:51] novitools dot novi at web dot de

Description:
------------
PDO Driver for MySQL, client library version 5.0.84



When using the bindColumn method of the pdo statement object, PDO
converts the value Null to the number 0, if you set the type to
PDO::PARAM_INT. Nevertheless PDO did'n convert a Null Value, when you
select PDO::PARAM_STR as type.



So PDO::PARAM_STR can handle Null-Values, but PDO::PARAM_INT can't.

Test script:
---------------
<?php

$DB_HOST = 'localhost';

$DB_NAME = '***';

$DB_PASSWORD = '***;

$DB_USERNAME = '***;



$Dsn = 'mysql:host='.$DB_HOST.';dbname='.$DB_NAME;

$Database = new PDO($Dsn, $DB_USERNAME, $DB_PASSWORD);

$Database->setAttribute(PDO::ATTR_ERRMODE           ,
PDO::ERRMODE_EXCEPTION);

$Database->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE,
PDO::FETCH_BOUND);



$Sql = <<<SQL

    SELECT '', Null, 0, Null

SQL;

  

$Statement = $Database->prepare($Sql);

$Statement->bindColumn(1, $Test1, PDO::PARAM_STR); // string(0) ""

$Statement->bindColumn(2, $Test2, PDO::PARAM_STR); // NULL

$Statement->bindColumn(3, $Test3, PDO::PARAM_INT); // int(0)

$Statement->bindColumn(4, $Test4, PDO::PARAM_INT); // NULL

$Statement->execute();

$Statement->fetch();

var_dump($Test1);

var_dump($Test2);

var_dump($Test3);

var_dump($Test4);

?>

Expected result:
----------------
string(0) "" NULL int(0) NULL

Actual result:
--------------
string(0) "" NULL int(0) int(0)


------------------------------------------------------------------------



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Edit this bug report at http://bugs.php.net/bug.php?id=53132&edit=1