xyzshop/mobile/control/app_update.php

<?php
/**
 * 更新
 */

defined('InShopNC') or exit('Access Invalid!');

class app_updateControl extends mobileHomeControl
{
    const CACHE_KEY = "app_update";
    const CACHE_CHECK_VERSION_ID = 1;

    public function __construct()
    {
        parent::__construct();
    }

    /**
     * 版本验证
     *
     * 输入参数：
     * ver_code：版本号
     * platform: 平台
     */
    public function checkVersionOp()
    {
        $ver_code = $_GET['ver_code'];
        $app_platform = $_GET['platform'];

        if (isset($app_platform) && isset($ver_code))
        {
            $ret = rcache(self::CACHE_KEY, self::CACHE_CHECK_VERSION_ID);
            if (empty($ret)) {
                $model = Model();
                $data = $model->table('app_update')->where(array('cur_version' => '1', 'enable' => '1', 'platform' => $app_platform))->limit(1)->select();
                if (empty($data)) {
                    return joutput_error(errcode::ErrDB);
                }
                wcache(self::CACHE_KEY, array("cur_version" => serialize($data)), self::CACHE_CHECK_VERSION_ID);
            } else {
                $data = unserialize($ret['cur_version']);
            }

            $result = array();
            $lowest_compatible_version = intval($data[0]['lowest_compatible_version']);
            if ($ver_code === $data[0]['ver_code']) {
                $result['latest'] = 0;
            } else {
                $result['latest'] = 1;
                if ($lowest_compatible_version > intval($ver_code)) {
                    $result['force_update'] = 1;
                } else {
                    $result['force_update'] = 0;
                }

                $update_info = array();
                $update_info['ver_code'] = $data[0]['ver_code'];
                $update_info['app_path'] = $data[0]['app_path'];
                $update_info['release_note'] = $data[0]['release_note'];
                $update_info['remind_time'] = $data[0]['remind_time'];

                $parse_url = parse_url($update_info['app_path']);
                $file_path = BASE_ROOT_PATH . $parse_url['path'];
                if(file_exists($file_path)) {
                    $update_info['md5_file'] = md5_file($file_path);
                } else {
                    $update_info['md5_file'] = '';
                }

                $result['update_info'] = $update_info;
            }
            joutput_data($result);
        } else {
            output_error('请输入平台和版本号！');
        }
    }
}