} $unit_id = ''; $course_id = ''; if (isset($_GET['course_id']) && is_numeric($_GET['course_id'])) { $course_id = (int) $_GET['course_id']; } if (isset($_GET['unit_id']) && is_numeric($_GET['unit_id'])) { $unit_id = (int) $_GET['unit_id']; } $course = new Course($course_id); if (empty($course)) { $course = new StdClass(); } else { $course_object = $course->get_course(); } $units = $course->get_units(); $students_count = $course->get_number_of_students(); ?> <div class="wrap nosubsub course-details cp-wrap"> <div class="icon32" id="icon-themes"><br></div> <?php $tab = isset($_GET['tab']) ? $_GET['tab'] : ''; if (empty($tab)) { $tab = 'overview'; } ?> <h2><?php if ($course_id == '') { _e('New Course', 'cp');