A PHP Error was encountered

Severity: Notice

Message: Undefined variable: page_name

Filename: includes/header.php

Line Number: 6

Backtrace:

File: /home/ozenkahidrolik/public_html/application/views/includes/header.php
Line: 6
Function: _error_handler

File: /home/ozenkahidrolik/public_html/application/views/sayfa_bulunamadi.php
Line: 26
Function: view

File: /home/ozenkahidrolik/public_html/application/controllers/Welcome.php
Line: 63
Function: view

File: /home/ozenkahidrolik/public_html/index.php
Line: 315
Function: require_once