PHP DbUtil::connect示例

<?php

include_once '../util/CrossBrowserHead.php';
include_once '../util/DbUtil.php';
include_once '../dao/CategoryDao.php';
include_once '../bo/CategoryBO.php';
include_once '../util/util.php';
$data = json_decode(file_get_contents("php://input"));
//echo $data->category;
$pdo = DbUtil::connect();
$categoryDao = new CategoryDao($pdo);
//echo '{"message":'. $data->category .'}';
if ($data->btn_action == 'save') {
    try {
        $category = $data->category;
        $startAge = $data->startAge;
        $endAge = $data->endAge;
        $gender = $data->gender;
        //$contact = $_POST['contact_no'];
        $categoryBO = new CategoryBO();
        $categoryBO->setLabel($category);
        $categoryBO->setStartAge($startAge);
        $categoryBO->setEndAge($endAge);
        $categoryBO->setGender($gender);
        if ($categoryDao->create($categoryBO)) {
            echo json_encode('{"message":"success"}');
        } else {
            echo json_encode('{"message":"failure"}');
        }
    } catch (Exception $e) {
        $msg = 'failure' . $e->getMessage() . $e->getFile() . $e->getLine();