Description:
------------
PHP version 5.6

i am trying to get last 25 row in acceding order from msgs table working in mysql and phpmyadmin but getting error using mysql pdo

Test script:
---------------


$sql = '(SELECT `id`,`msg`,`time`,`sender_id`,`mid` from msgs WHERE mid > 0 and `grp_id` = :grp_id2 ORDER BY id DESC limit 25) ORDER BY id ASC';

$sql_array = array(
	'grp_id2' => $grp_id,
	'user' => $data['user']['id'],
	'grp_id' => $grp_id
);
$stmt = $data['pdo']->prepare($sql);
$stmt->execute($sql_array);



Expected result:
----------------
selected columns of table which is working in mysql and phpmyadmin

Actual result:
--------------
output

Warning: PDO::prepare(): Unknown type 17 sent by the server. Please send a report to the developers in msgs.php on line 174
Fatal error: Call to a member function execute() on boolean in msgs.php on line 176