A PHP Error was encountered

Severity: Notice

Message: Undefined offset: -1

Filename: helpers/formatindo_helper.php

Line Number: 17

Backtrace:

File: /home/sdlabupicibiru/web/web.sdlabupicibiru.sch.id/public_html/application/helpers/formatindo_helper.php
Line: 17
Function: _error_handler

File: /home/sdlabupicibiru/web/web.sdlabupicibiru.sch.id/public_html/application/views/v_siswa.php
Line: 81
Function: format_indo

File: /home/sdlabupicibiru/web/web.sdlabupicibiru.sch.id/public_html/application/controllers/Welcome.php
Line: 255
Function: view

File: /home/sdlabupicibiru/web/web.sdlabupicibiru.sch.id/public_html/index.php
Line: 315
Function: require_once