Message: Class 'SQLite3' not found

In my Codeigntier Project, I have se databse.php file as below:

$db[‘default’] = array(
‘dsn’ => ‘’,
‘hostname’ => ‘’,
‘username’ => ‘’,
‘password’ => ‘’,
‘database’ => ‘…/MBLRS.db’,
‘dbdriver’ => ‘sqlite3’,
‘dbprefix’ => ‘’,
‘pconnect’ => FALSE,
‘db_debug’ => (ENVIRONMENT !== ‘production’),
‘cache_on’ => FALSE,
‘cachedir’ => ‘’,
‘char_set’ => ‘utf8’,
‘dbcollat’ => ‘utf8_general_ci’,
‘swap_pre’ => ‘’,
‘encrypt’ => FALSE,
‘compress’ => FALSE,
‘stricton’ => FALSE,
‘failover’ => array(),
‘save_queries’ => TRUE
);

In PHP Settings-> PHP Extensions, php_pdo_sqlite.dll and php_sqlite3.dll I have compiled into exe
In PHP.ini, I have uncommented the line: extension=php_sqlite3.dll

Still on running the application, I am getting the following error:

An uncaught Exception was encountered

Type: Error

Message: Class ‘SQLite3’ not found

Filename: D:\Programs\PHP\Data\system\database\drivers\sqlite3\sqlite3_driver.php

Line Number: 89

Backtrace:

File: D:\Programs\PHP\Data\application\models\User_model.php
Line: 6
Function: database

File: D:\Programs\PHP\Data\application\controllers\User.php
Line: 8
Function: model

File: D:\Programs\PHP\Data\index.php
Line: 315
Function: require_once