A PHP Error was encountered

Severity: Warning

Message: Undefined variable $username

Filename: config/database.php

Line Number: 25

Backtrace:

File: /var/www/staging/application/config/database.php
Line: 25
Function: _error_handler

File: /var/www/staging/application/core/MY_Controller.php
Line: 239
Function: database

File: /var/www/staging/application/controllers/Welcome.php
Line: 10
Function: __construct

File: /var/www/staging/index.php
Line: 300
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Undefined variable $password

Filename: config/database.php

Line Number: 26

Backtrace:

File: /var/www/staging/application/config/database.php
Line: 26
Function: _error_handler

File: /var/www/staging/application/core/MY_Controller.php
Line: 239
Function: database

File: /var/www/staging/application/controllers/Welcome.php
Line: 10
Function: __construct

File: /var/www/staging/index.php
Line: 300
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Undefined variable $database

Filename: config/database.php

Line Number: 27

Backtrace:

File: /var/www/staging/application/config/database.php
Line: 27
Function: _error_handler

File: /var/www/staging/application/core/MY_Controller.php
Line: 239
Function: database

File: /var/www/staging/application/controllers/Welcome.php
Line: 10
Function: __construct

File: /var/www/staging/index.php
Line: 300
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /var/www/staging/system/core/Exceptions.php:272)

Filename: core/Common.php

Line Number: 571

Backtrace:

An uncaught Exception was encountered

Type: mysqli_sql_exception

Message: Access denied for user ''@'localhost' (using password: NO)

Filename: /var/www/staging/application/config/database.php

Line Number: 48

Backtrace:

File: /var/www/staging/application/config/database.php
Line: 48
Function: __construct

File: /var/www/staging/application/core/MY_Controller.php
Line: 239
Function: database

File: /var/www/staging/application/controllers/Welcome.php
Line: 10
Function: __construct

File: /var/www/staging/index.php
Line: 300
Function: require_once