} public function Delete() { $id = 1; $stmt = $this->conn->prepare('DELETE FROM main_category WHERE main_category_id = :id'); $stmt->bindParam(':id', $id); $stmt->execute(); echo $stmt->rowCount(); } public function GetMainCategoryById() { $id = 5; try { $stmt = $this->conn->prepare('SELECT * FROM main_category WHERE id = :id'); $stmt->execute(array('id' => $id)); $result = $stmt->fetchAll(); if (count($result)) { foreach ($result as $row) { print_r($row); } } else { echo "No rows returned."; } } catch (PDOException $e) { echo 'ERROR: ' . $e->getMessage(); } } } $obj = new Config(); $obj->SetMainCategory();