Description:
------------
Description:
------------
Starting position:
Ubuntu 14.04 LTS 64-Bit, PHP 7.0.4
Interbase with dialect 1

If a charset is added at the end of the DSN other values will be returned by SELECT.

With old ibase_* commands it works as expected.

Test script:
---------------
$pdo1 = new PDO("firebird:dbname=......");
$stmt1 = $pdo1->query("SELECT COUNT(*) FROM mytable");
$res1 = $stmt->fetchAll();
$pdo2 = new PDO("firebird:dbname=......;charset=utf8");
$stmt2 = $pdo2->query("SELECT COUNT(*) FROM mytable");
$res2 = $stmt->fetchAll();
$pdo3 = new PDO("firebird:dbname=......;charset=UTF8");
$stmt3 = $pdo3->query("SELECT COUNT(*) FROM mytable");
$res3 = $stmt->fetchAll();
$pdo4 = new PDO("firebird:dbname=......;charset=UTF-8");
$stmt4 = $pdo3->query("SELECT COUNT(*) FROM mytable");
$res4 = $stmt->fetchAll();
$pdo5 = new PDO("firebird:dbname=......;charset=utf-8");
$stmt5 = $pdo5->query("SELECT COUNT(*) FROM mytable");
$res5 = $stmt->fetchAll();



Expected result:
----------------
$res1 = 40998
$res2 = 40998
$res3 = 40998
$res4 = 40998
$res5 = 40998

Actual result:
--------------
$res1 = 40998
$res2 = 650
$res3 = 5
$res4 = PDO-Exception "SQLSTATE[HY000] [335544325] bad parameters on attach or create database"
$res5 = PDO-Exception "SQLSTATE[HY000] [335544325] bad parameters on attach or create database"