From:             
Operating system: All
PHP version:      Irrelevant
Package:          PDO related
Bug Type:         Bug
Bug description:Extending PDOStatement and replacing fetch() apply when using 
foreach

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 bug report at http://bugs.php.net/bug.php?id=52444&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=52444&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=52444&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=52444&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=52444&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=52444&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=52444&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=52444&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=52444&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=52444&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=52444&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=52444&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=52444&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=52444&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=52444&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=52444&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=52444&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=52444&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=52444&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=52444&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=52444&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=52444&r=mysqlcfg

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