<?php if (!isset($_SESSION)) { session_start(); } if (isset($_SESSION['id_imprimere'])) { if (isset($_POST['id_venta'])) { require_once '/../../php/clases/ventas.class.php'; $class_venta = new venta(); $class_venta->anular($_POST['id_venta']); return true; } else { return false; } } else { session_destroy(); header("Location: ../../index.php"); }