Edit report at http://bugs.php.net/bug.php?id=52444&edit=1

 ID:                 52444
 Updated by:         johan...@php.net
 Reported by:        antennen at gmail dot com
 Summary:            Extending PDOStatement and replacing fetch() apply
                     when using foreach
 Status:             Open
 Type:               Bug
 Package:            PDO related
 Operating System:   All
 PHP Version:        Irrelevant
 Block user comment: N
 Private report:     N

 New Comment:

PDO should rather implement the Iterator interface so one can override
"current"


Previous Comments:
------------------------------------------------------------------------
[2010-07-26 12:57:39] antennen at gmail dot com

Description:
------------
Extending PDOStatement and replacing fetch() doesn't work when iterating
using foreach. It calls the built in fetch rather than my overridden
one. This can be circumvented using while($r = $s->fetch()) { .. } but I
believe this behaviour is unexpected.

Test script:
---------------
class ExtendedStatement extends PDOStatement {

        protected function __construct() {

                $this->setFetchMode(PDO::FETCH_ASSOC);

        }

        public function fetch($fetch_style = PDO::FETCH_ASSOC,
$cursor_orientation = PDO::FETCH_ORI_NEXT, $cursor_offset = 0)

        {

                $r = parent::fetch($fetch_style, $cursor_orientation,
$cursor_offset);

                if (is_array($r)) { $r["extradata"] = TRUE; }

                return $r;

        }

}

$db = new PDO("sqlite::memory:");

$db->setAttribute(PDO::ATTR_STATEMENT_CLASS, array("ExtendedStatement",
array($db)));

$db->exec("CREATE TABLE example(id INTEGER PRIMARY KEY, name
VARCHAR)");

$db->exec("INSERT INTO example(name) VALUES('test')");

$s = $db->prepare("SELECT * FROM example");

$s->execute();

foreach ($s as $r) {

        var_dump($r);

}

Expected result:
----------------
array(3) {

  ["id"]=>

  string(1) "1"

  ["name"]=>

  string(4) "test"

  ["extradata"]=>

  bool(true)

}

Actual result:
--------------
array(2) {

  ["id"]=>

  string(1) "1"

  ["name"]=>

  string(4) "test"

}


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



-- 
Edit this bug report at http://bugs.php.net/bug.php?id=52444&edit=1

Reply via email to