A PHP Error was encountered

Severity: Warning

Message: count(): Parameter must be an array or an object that implements Countable

Filename: controllers/Course.php

Line Number: 318

Backtrace:

File: D:\Application\ONE\Web\application\controllers\Course.php
Line: 318
Function: _error_handler

File: D:\Application\ONE\Web\index.php
Line: 317
Function: require_once