A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /var/www/html/application/controllers/Unit.php:1)

Filename: helpers/url_helper.php

Line Number: 562

Backtrace:

File: /var/www/html/application/models/Unitdetail_mod.php
Line: 74
Function: redirect

File: /var/www/html/application/controllers/Unit.php
Line: 53
Function: getUnitDetail

File: /var/www/html/index.php
Line: 315
Function: require_once