php版微信实现公众号菜单添加删除操作

公众号菜单添加删除如果是单号可以直接登录后台操作了，但如果我们开了开发接口那么这个菜单的操作也必须通过接口来实现了，下面我们来看一篇关于php版微信实现公众号菜单添加删除操作例子。

为了以最快方式调试新菜单功能，就用Debug方式去生成新菜单。请参数微信教程2的 wechat-json类。导入该文件后，我们用Debug方式生成一个新菜单：
if (isset($argc)  && $argc >= 1 && $argv[0] == __FILE__) {
    $client = new WechatJSON(array(
        WechatJSON::APP_ID => 'wx78acfe8023sfsd4d51',
        WechatJSON::APP_SECRET => '9ba3476db1ffsfsf512e0b22f630fa',
    ));
 
    $res = $client->call('/menu/create',array (
            'button' => array(
                array (
                    'name' => '扫码',
                    'sub_button' => array(
                        array(
                            'name' => '扫码不提示',
                            'type' => 'scancode_push',
                            'key' => 'rselfmenu_0_0',
                            'sub_button' =>array ()
                        ),
                        array(
                            'name' => '扫码带提示',
                            'type' => 'scancode_waitmsg',
                            'key' => 'rselfmenu_0_1',
                            'sub_button' =>array ()
                        ),
                    ),
                ),
                array(
                    'name' => '发图',
                    'sub_button' => array(
                        array(
                            'name' => '系统拍照发图',
                            'type' => 'pic_sysphoto',
                            'key' => 'rselfmenu_1_0',
                            'sub_button' => array()
                        ),
                        array(
                            'name' => '拍照或者相册发图',
                            'type' => 'pic_photo_or_album',
                            'key' => 'rselfmenu_1_1',
                            'sub_button' => array()
                        ),
                        array(
                            'name' => '微信相册发图',
                            'type' => 'pic_weixin',
                            'key' => 'rselfmenu_1_2',
                            'sub_button' => array()
                        ),
                    )
                ),
                array(
                    'name' => '发送位置',
                    'type' => 'location_select',
                    'key' => 'rselfmenu_2_0'
                )
            )
        )
        , WechatJSON::JSON);
    if (!$res) {
        var_dump($client->_error);
    }
    var_export($res);
}

执行后，取消关注再关注，让新菜单生效！
效果图：

测试结果如下：
scancode_push事件:
array (
  'tousername' => 'gh_e2a2b3bd35ff',
  'fromusername' => 'on0eVjnYStxkCSaaCamYCpMZDmwA',
  'createtime' => '1411629272',
  'msgtype' => 'event',
  'event' => 'scancode_push',
  'eventkey' => '6',
  'scancodeinfo' =>
  SimpleXMLElement::__set_state(array(
     'ScanType' => 'qrcode',
     'ScanResult' => 'http://www.baidu.com/',
  )),
array (
  'tousername' => 'gh_e2a2b3bd35ff',
  'fromusername' => 'on0eVjnYStxkCSaaCamYCpMZDmwA',
  'createtime' => '1411629475',
  'msgtype' => 'event',
  'event' => 'scancode_push',
  'eventkey' => '6',
  'scancodeinfo' =>
  SimpleXMLElement::__set_state(array(
     'ScanType' => 'qrcode/EAN_13',
     'ScanResult' => '6925082946487',
     'EventKey' =>
    SimpleXMLElement::__set_state(array(
    )),
  )),
)

 

 

上面是在菜单上点击《扫码不提示》后的log，有两种情况出现，第一种是如果你扫的是二维码是URL，它就会跳转到网页（注包括服务号生成的二维码），第二种是如果你扫的是条形码，就会跳转到搜索到该商品的详细信息，也就是大家常用的查价格。

scancode_waitmsg事件：
array (
  'tousername' => 'gh_e2a2b3bd35ff',
  'fromusername' => 'on0eVjnYStxkCSaaCamYCpMZDmwA',
  'createtime' => '1411629302',
  'msgtype' => 'event',
  'event' => 'scancode_waitmsg',
  'eventkey' => '6',
  'scancodeinfo' =>
  SimpleXMLElement::__set_state(array(
     'ScanType' => 'qrcode',
     'ScanResult' => 'http://www.111cn.net/',
  )),

 

上面是点击菜单《扫码提示》后的log，推送XML跟scancode_push时差不多,但它不会跳转到网址或者商品信息。博主认为，这有利于后台取得scancodeinfo的信息来进一步处理！打个比方，自己自定义二维码信息，然后截取处理。类似于原服务号的参数二维码。
注意，以上两个菜单扫描事件和微信APP的扫一扫，是有区别的。具体你看事件就能看出来，scan事件！
pic_sysphoto事件、pic_photo_or_album事件和pic_weixin事件
array (
  'tousername' => 'gh_e2a2b3bd35ff',
  'fromusername' => 'on0eVjnYStxkCSaaCamYCpMZDmwA',
  'createtime' => '1411627313',
  'msgtype' => 'image',
  'picurl' => 'http://mmbiz.qpic.cn/mmbiz/L8zbjcLqNFvEZ4dne4MGQQGR8xuHk4KhEk3icghU6a4bFTXnP2oeicr5VaBVJa10w4MYOOEia4udqicT5fdtAADHYg/0',
  'msgid' => '6062893143676022221',
  'mediaid' => 'i7hYOlSXbUCaC7Z9Elx4WpBqQq37-hR0El5w-frPfD5WCdBC7x46DPO6HL7zMfgd',
)

 

 

上面是点《发图》后，三个子菜单选择或者拍好，发图后的log信息，从图中我们看到事件是推过来了image，其他信息，相信大家都知道是什么，不解释。
location_select事件：
array (
  'tousername' => 'gh_e2a2b3bd35ff',
  'fromusername' => 'on0eVjnYStxkCSaaCamYCpMZDmwA',
  'createtime' => '1411627424',
  'msgtype' => 'event',
  'event' => 'location_select',
  'eventkey' => '6',
  'sendlocationinfo' =>
  SimpleXMLElement::__set_state(array(
     'Location_X' => '23',
     'Location_Y' => '113',
     'Scale' => '15',
     'Label' =>
    SimpleXMLElement::__set_state(array(
    )),
     'Poiname' =>
    SimpleXMLElement::__set_state(array(
    )),
  )),
)

上面是点击菜单《发送位置》后的log，我们可以看出事件是location_select，不像发图那样变成image,最有价值的信息是我们要取的sendlocationinfo里的

登录授权功能我们通常是绑定自己的网站了，最近在开发了一个微信登录绑定自己公司的网站会员ＩＤ了，下面我们来把这个例子与原理介绍一下吧。

用户授权也是高级接口那部分内容，只是把它独立出来，这样让整个微信框架条理清晰些，但我们用它首先要在微信后台设置OA2的URL，这里的URL和教程一的有所不同。它是不带http://开头的域名。
首先登陆你的微信后台找到《开发者中心》：

点击修改填入我们的域名如下格式：

好了，最基本要点的OA2要求搞好，下面我们用个WechatAuth类生成一个OA2的URL格式，然后再从服务号里，以链接或者菜单又或者图文，跳到微信内置的WEB里就实现了我们取openid或者授权取用户消息！

例子代码生成snsapi_base或者snsapi_userinfo：
$auth = new WechatAuth(array(
        WechatAuth::APP_ID => 'wx32259fc5sd5aac12B',
        WechatAuth::APP_SECRET => '7ef73d3c56fcd0d984862ff217d2c648',
    ));
    $url = $auth->getLoginUrl(array(
        'redirect_uri' => 'http://www.demo.com/wp/ken',
        'scope' => 'snsapi_userinfo' //snsapi_base
    ));
    echo $url;

执行后，我们会得到如下OA2的URL：

https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx32259fc5d5aac13d&redirect_uri=http%3A%2F%2Fwww.demo.com%2Fwp%2Fken&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirects

然后我们在服务号里以刚才说到的菜单好，链接好 点击转到微信内置的浏览器里，如果你的scope方式为snsapi_userinfo时会弹出授权界面，base时不会弹默认执行后会返回openid：

好了，OA2无非就是让我们生成特定格式的URL，让我们点过去取openid或者用户信息（无论是否关注了你的服务号，只要确认授权）,可以运用本站微信的实例有相关OA2的运用或者留言给我！
WechatAuth类：

<?php
/**
 * 微信 OAuth2.0授权接口
 * Class WechatAuth
 */
class WechatAuth {
 
    const
        JSON = 'json',
        POST = 'post',
        GET = 'get',
        APP_ID = 'appid',
        APP_SECRET = 'secret',
        API_URL_PREFIX = 'https://api.weixin.qq.com/sns';
 
    public
        $_error_number = 0,
        $_error,
        $_APPID,
        $_APPSECRET;
 
    protected
        $_cache = array(),
        $_options,
        $_openid,
        $_access_token,
        $_refresh_token,
        $_timeout = 30;
 
    static protected
        $_instance;
 
    /**
     * 单例模式
     * @param array $options
     * @return WechatAuth
     */
    static public function getInstance(array $options = array()) {
        if (empty(self::$_instance)) {
            self::$_instance = new WechatAuth($options);
        }
 
        return self::$_instance;
    }
 
    /**
     * @param array $options {WechatAuth::APP_ID:"", WechatAuth::APP_SECRET:""}
     */
    public function __construct(array $options = array()) {
        $this->_options = array(
            'timeout' => $this->_timeout,
        );
        $_options = array_merge($this->_options, $options);
        $this->_APPID = $_options['appid'];
        $this->_APPSECRET = $_options['secret'];
        $this->_timeout = $_options['timeout'];
    }
 
    /**
     * 提交请求
     * @param $url
     * @param array $params
     * @param string $type Webchat_API::POST|Webchat_API::GET
     * @return bool|mixed
     */
    public function request($url, $params = array(), $type = self::POST) {
        $ch = curl_init();
        if ($type == self::GET) {
            $url = $url.'?'.http_build_query($params);
        }
        curl_setopt_array($ch, array(
            CURLOPT_URL => $url,
            CURLOPT_TIMEOUT => $this->_timeout,
            CURLOPT_USERAGENT => 'wordpress_wechat_client/0.1.'.rand(1,6),
            CURLOPT_HEADER => 0,
            CURLOPT_FOLLOWLOCATION => 1,
            CURLOPT_RETURNTRANSFER => 1,
            CURLOPT_SSL_VERIFYPEER => 0,
            CURLOPT_SSLVERSION => 3,
//            CURLOPT_VERBOSE => 1,
        ));
        if ($type == self::POST) {
            curl_setopt($ch, CURLOPT_PORT, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        }
        if ($type == self::JSON) {
            //微信的破接口竟然不支持unicode转义符，违反JSON协定，只能把JSON字符中的unicode转回来
            $data = preg_replace('/\\\\u([a-f0-9]{4})/e', "json_decode('\"$0\"', 1)", json_encode($params));
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
        }
        $res = curl_exec($ch);
        $this->_error_number = curl_errno($ch);
        $this->_error = curl_error($ch);
        curl_close($ch);
 
        if ($this->_error_number) {
            return false;
        }
        return $this->parseResult($res);
    }
 
    /**
     * 处理返回结果
     * @param $res
     * @return bool|mixed
     */
    protected function parseResult($res) {
        $res = json_decode($res, true);
        if (!empty($res)) {
            if (isset($res['errcode']) && $res['errcode']) {
                $this->_error_number = $res['errcode'];
                $this->_error = $res['errmsg'];
                return false;
            }
 
            return $res;
        }
 
        return false;
    }
 
    /**
     * 获取当前URL
     * @return string
     */
    static public function getCurrentUrl() {
        $pageURL = 'http';
        if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on") {
            $pageURL .= "s";
        }
        $pageURL .= "://";
        if (isset($_SERVER['SERVER_PORT']) && $_SERVER["SERVER_PORT"] != "80") {
            $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
        } else {
            if(isset($_SERVER["SERVER_NAME"]) && isset($_SERVER["REQUEST_URI"]))
                $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
        }
        return $pageURL;
    }
 
    /**
     * 获取访问token
     * @param bool $refresh 是否强制刷新
     * @return bool|mixed
     */
    public function getAuthAccessToken($refresh = false) {
        $code = isset($_GET['code']) ? $_GET['code'] : '';
        $state = isset($_GET['state']) ? $_GET['state'] : '';
        $cache = $this->cache('auth_access_token');
        if ($cache && ! $refresh) {
            return array('access_token' => $cache, 'code' => $code, 'state' => $state);
        }
        $res = $this->request(self::API_URL_PREFIX.'/oauth2/access_token', array(
            self::APP_ID => $this->_APPID,
            self::APP_SECRET => $this->_APPSECRET,
            'code' => $code,
            'grant_type' => 'authorization_code',
        ), self::GET);
        if ($res) {
            $this->cache('auth_access_token', $res['access_token']);
            $this->cache('auth_refresh_token', $res['refresh_token']);
            $this->cache('auth_openid', $res['openid']);
        } else {
            if ($this->_error_number == 42001) {
                return $this->refreshAccessToken();
            }
        }
       return array('access_token' => $res['access_token'], 'code' => $code, 'state' => $state);
    }
 
    /**
     * 刷新访问token
     * @return mixed
     */
    public function refreshAccessToken() {
        $code = isset($_GET['code']) ? $_GET['code'] : '';
        $state = isset($_GET['state']) ? $_GET['state'] : '';
        $cache = $this->cache('auth_refresh_token');
        if ($cache) {
            $this->_refresh_token = $cache;
        }
 
        $res = $this->request(self::API_URL_PREFIX.'/oauth2/refresh_token', array(
            self::APP_ID => $this->_APPID,
            'refresh_token' => $this->_refresh_token,
            'grant_type' => 'refresh_token',
        ), self::GET);
 
        if ($res) {
            $this->cache('auth_access_token', $res['access_token']);
            $this->cache('auth_refresh_token', $res['refresh_token']);
            $this->cache('auth_openid', $res['openid']);
        }
        return array('access_token' => $res['access_token'], 'code' => $code, 'state' => $state);
    }
 
    /**
     * 获取用户信息
     * @param bool $refresh 是否强制刷新
     * @return bool|mixed
     */
    public function getUserInfo($refresh = false) {
        $this->_access_token = $this->getAuthAccessToken($refresh);
        $cache =  $this->cache('auth_openid');
        if ($cache) {
            $this->_openid = $cache;
        }
 
        $res = $this->request(self::API_URL_PREFIX.'/userinfo', array(
            'access_token' => $this->_access_token,
            'openid' => $this->_openid,
        ), self::GET);
 
 
        if ($res) {
            return $res;
        }
 
        return false;
    }
 
    /**
     * 获取用户授权地址
     * @param array $options
     * @return string
     */
    public function getLoginUrl($options = array()) {
        $_options = array(
            self::APP_ID => $this->_APPID,
            'redirect_uri' => self::getCurrentUrl(),
            'response_type' => 'code',
            'scope' => 'snsapi_base', //snsapi_base | snsapi_userinfo
            'state' => 'STATE',
        );
        $params = array_merge($_options, $options);
 
        return 'https://open.weixin.qq.com/connect/oauth2/authorize?'.http_build_query($params).'#wechat_redirects';
    }
 
    /**
     * 缓存接口Session实现
     * @param $key 缓存索引key
     * @param null $value 缓存值
     * @return bool|mixed
     */
    public function cache($key, $value = null) {
        if (!session_id()) {
            session_start();
        }
        if (empty($value)) {
            if (isset($_SESSION[$key])) {
                return $_SESSION[$key];
            }
            return false;
        }
        $_SESSION[$key] = $value;
        return false;
    }
}

主动发送内容我们需要调用微信官方的api然后再推送给客户了，下面我们来看一篇关于php版微信开发主动发送实例，具体的如下所示。

为了方便调试用CLI方式作测试，记得代码中替换你的appid和appsecret：

比如我们想取公众号的组数据：
if (isset($argc)  && $argc >= 1 && $argv[0] == __FILE__) {
    $client = new WechatJSON(array(
        WechatJSON::APP_ID => 'wx78acfe8257asDb1',
        WechatJSON::APP_SECRET => '9ba3476db1ff75654aBceae0b20fb9',
    ));
    $res = $client->call('/groups/get');
    if (!$res) {
        var_dump($client->_error);
    }
    var_dump($res);
}

如下图所示：

又或者我们生成菜单：

if (isset($argc)  && $argc >= 1 && $argv[0] == __FILE__) {
    $client = new WechatJSON(array(
        WechatJSON::APP_ID => 'wx78acfe8257asDb1',
        WechatJSON::APP_SECRET => '9ba3476db1ff75654aBceae0b20fb9',
    ));
    $res = $client->call('/menu/create', array(
        'button' => array(
            array(
                'type' => 'click',
                'name' => '测试铵钮',
                'key' => 'test_btn'
            ),array(
                'type' => 'view',
                'name' => '测试跳转',
                'url' => 'http://www.baidu.com'
            ))
        ),WechatJSON::JSON);
    if (!$res) {
        var_dump($client->_error);
    }
    var_dump($res);
}

成功后返回OK如下图：

其他接口可以大家可以自己自由获取或者提交POST GET等这里不熬述了！有问题留言

微信高级接口API 类：
<?php
/**
 * 微信 高级接口API  Class WechatJSON
 */
class WechatJSON {
    const
        QR_SCENE = 'QR_SCENE',
        QR_LIMIT_SCENE = 'QR_LIMIT_SCENE',
        IMAGE = 'image',
        VOICE = 'voice',
        VIDEO = 'video',
        NEWS = 'news',
        MPNEWS = 'mpnews',
        THUMB = 'thumb',
        API_URL_PREFIX = 'https://api.weixin.qq.com/cgi-bin',
        AUTH_API_URL = 'https://api.weixin.qq.com/sns/oauth2/access_token',
        AUTH_URL = 'https://open.weixin.qq.com/connect/oauth2/authorize',
        PAY_URL = 'https://api.weixin.qq.com/pay',
        APP_ID = 'appid',
        APP_SECRET = 'secret',
        TIMEOUT = 'timeout',
        JSON = 'json',
        POST = 'post',
        GET = 'get',
        API_TYPE_CGI = 'cgi',
        API_TYPE_PAY = 'pay';
    public
        $_error_number = 0,
        $_error,
        $_APPID,
        $_APPSECRET;
 
    protected
        $_cache = array(),
        $_options,
        $_auth_access_token,
        $_access_token,
        $_timeout = 30;
 
    static protected
        $_no_need_token_apis = array(
        '/showqrcode',
    ),
        $_instance;
 
    /**
     * 单例模式
     * @param array $options
     * @return Wechat_API
     */
    static public function getInstance(array $options = array()) {
        if (empty(self::$_instance)) {
            self::$_instance = new self ($options);
        }
 
        return self::$_instance;
    }
 
    /**
     * @param array $options {Wechat_API::APP_ID:"", Wechat_API::APP_SECRET:"", Wechat_API::TIMEOUT:""}
     */
    public function __construct(array $options = array()) {
        $this->_options = array(
            'timeout' => $this->_timeout,
        );
        $_options = array_merge($this->_options, $options);
        $this->_APPID = $_options['appid'];
        $this->_APPSECRET = $_options['secret'];
        $this->_timeout = $_options['timeout'];
    }
 
    /**
     * 提交请求
     * @param $url
     * @param array $params
     * @param string $type Wechat_API::POST|Wechat_API::GET
     * @return bool|mixed
     */
    public function request($url, $params = array(), $type = self::POST, $format_result = true) {
        $ch = curl_init();
        if ($type == self::GET) {
            $url = $url.'?'.http_build_query($params);
        }
        curl_setopt_array($ch, array(
            CURLOPT_URL => $url,
            CURLOPT_TIMEOUT => $this->_timeout,
            CURLOPT_USERAGENT => 'wordpress_wechat_client/0.1.'.rand(1,6),
            CURLOPT_HEADER => 0,
            CURLOPT_FOLLOWLOCATION => 1,
            CURLOPT_RETURNTRANSFER => 1,
            CURLOPT_SSL_VERIFYPEER => 0,
            CURLOPT_SSLVERSION => 3,
//            CURLOPT_VERBOSE => 1,
        ));
        if ($type == self::POST) {
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        }
        if ($type == self::JSON) {
            //微信的破接口竟然不支持unicode转义符，违反JSON协定，只能把JSON字符中的unicode转回来
            $data = preg_replace('/\\\\u([a-f0-9]{4})/e', "json_decode('\"$0\"', 1)", json_encode($params));
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
        }
 
        $res = curl_exec($ch);
        $this->_error_number = curl_errno($ch);
        $this->_error = curl_error($ch);
        curl_close($ch);
 
        if ($this->_error_number) {
            return false;
        }
        return ($format_result ? $this->parseResult($res) : $res);
    }
 
    /**
     * 处理返回结果
     * @param $res
     * @return bool|mixed
     */
    protected function parseResult($res) {
        $res = json_decode($res, true);
        if (!empty($res)) {
            if (isset($res['errcode']) && $res['errcode']) {
                $this->_error_number = $res['errcode'];
                $this->_error = $res['errmsg'];
                return false;
            }
            return $res;
        }
        return false;
    }
 
    public function getAccessToken() {
        $cache = $this->cache($this->_APPID.':'.'access_token');
        if ($cache) {
            return $cache;
        }
        $res = $this->request(self::API_URL_PREFIX.'/token', array(
                'grant_type' => 'client_credential',
                self::APP_ID => $this->_APPID,
                self::APP_SECRET => $this->_APPSECRET,
            ), self::GET);
        if ($res) {
            $this->cache($this->_APPID.':'.'access_token', $res['access_token']);
            return $res['access_token'];
        }
        return false;
    }
 
    /**
     * 预留缓存接口 (强烈建议实现此接口，用于缓存access_token，每次查询会节省很多时间)
     * @param $key 缓存索引key
     * @param null $value 缓存值
     * @param int $timeout 缓存超时时间
     * @return bool|mixed
     */
    public function cache($key, $value = null, $timeout = 7200) {
        if (!session_id()) {
            session_start();
        }
        if (empty($value)) {
            if (isset($_SESSION[$key])) {
                return $_SESSION[$key];
            }
            return false;
        }
        $_SESSION[$key] = $value;
        return false;
    }
 
    /**
     * 调用具体的接口 注意:使用创建数据时使用Wechat_API::JSON
     * @param $api_name REST规格接口名称
     * @param array $params 接口参数
     * @param string $type Wechat_API::GET|Wechat_API::POST|Wechat_API::JSON
     * @return bool|mixed
     */
    public function call($api_name, $params = array(), $type = self::GET, $api_type = self::API_TYPE_CGI) {
        if($api_type == self::API_TYPE_PAY) {
            $url = self::PAY_URL.$api_name;
        } else {
            $url = self::API_URL_PREFIX.$api_name;
        }
        if (in_array($api_name, self::$_no_need_token_apis)) {
            $res = $this->request($url, $params, $type);
            if ($res) {
                return $res;
            }
        }
        $this->_access_token = $this->getAccessToken();
        if ($this->_access_token) {
            if ($type == self::JSON) {
                $url = $url.'?access_token='.$this->_access_token;
            } else {
                $params['access_token'] = $this->_access_token;
            }
            $res = $this->request($url, $params, $type);
            if ($res) {
                return $res;
            }
        }
        return false;
    }
 
    /**
     * 生成二维码
     *
     * @param int $scene_id 场景ID 临时二维码int32 | 永久二维码 < 1000
     * @param string $type 二维码类型 Wechat_API::QR_LIMIT_SCENE | Wechat_API::QR_SCENE 临时二维码|永久二维码
     * @return bool|mixed
     */
    public function GetQrCode($scene_id = 0, $type = self::QR_LIMIT_SCENE) {
        $res = $this->call('/qrcode/create', array(
            'expire_seconds' => 1800,
            'action_name' => $type,
            'action_info' => array(
                'scene' => array(
                    'scene_id' => $scene_id,
                )
            )
        ), self::JSON);
        if ($res && isset($res['ticket'])) {
            $res = $this->request('https://mp.weixin.qq.com/cgi-bin/showqrcode', array(
                'ticket' => $res['ticket'],
            ), self::GET, false);
            if ($res) {
                return $res;
            }
        }
        return false;
    }
 
    public function MediaUpload($file_full_path, $type = self::THUMB) {
        $this->_access_token = $this->getAccessToken();
        $res = false;
        if ($this->_access_token) {
            $url = 'http://file.api.weixin.qq.com/cgi-bin/media/upload?';
            $url = $url.'access_token='.$this->_access_token.'&type='.$type;
            $res = $this->request($url, array(
                'media' => '@'.$file_full_path,
            ), self::POST);
        }
        return $res;
    }
 
    public function GetMedia($media_id) {
        $this->_access_token = $this->getAccessToken();
        if ($this->_access_token) {
            $res = $this->request('http://file.api.weixin.qq.com/cgi-bin/media/get', array(
                'access_token' => $this->_access_token,
                'media_id' => $media_id,
            ), self::GET, false);
            if ($res) {
                $res_json = json_decode($res, 1);
                if (!$res_json) {
                    return $res;
                }
                $this->_error_number = $res_json['errcode'];
                $this->_error = $res_json['errmsg'];
            }
        }
        return false;
    }
}

生成短网址我们只要通过唯一的算法就可以实现生成短网址了，这里来给各位整理几种php生成短网址的方法，具体的操作方法与细节如下介绍。

短网址的实现原理就是有一个数据表会配置文件将短网址和实际网址进行对应，当请求某个短网址时，程序跳转到对应的实际网址上去，从而实现网址的访问。

方案1：PHP+MySQl实现短网址的生成和读取

常规的方案我们将生成好的短网址和原网址对应到一张数据表中，然后供读取使用。我们先来看如何生成唯一的短网址。
//生成短网址
function code62($x){
    $show='';
    while($x>0){
        $s=$x % 62;
        if ($s>35){
            $s=chr($s+61);
        }elseif($s>9&&$s<=35){
            $s=chr($s+55);
        }
        $show.=$s;
        $x=floor($x/62);
    }
    return $show;
}
function shorturl($url){
    $url=crc32($url);
    $result=sprintf("%u",$url);
    return code62($result);
}
echo shorturl('http://www.111cn.net/');
//1EeIv2
使用以上PHP代码可以生成唯一的6位的短网址，然后我们将生成的短网址与原网址一起写入到MySQL表中，插入数据库的代码这里我就不写了，这是PHP基础。

接着，我们有一个link.php用来接收读取url并实现真实跳转。
include_once('connect.php'); //连接数据库
$url = $_GET['url'];
if(isset($url) && !empty($url)){
    $sql = "select url from shorturl where codeid='$url'";
    $query = mysql_query($sql);
    if($row=mysql_fetch_array($query)){
        $real_url = $row['url'];
        header('Location: ' . $real_url);
    }else{
        header('HTTP/1.0 404 Not Found');
        echo 'Unknown link.';
    }
}else{
    header('HTTP/1.0 404 Not Found');
    echo 'Unknown link.';
}
代码中，如果得到短网址对应的真实url，会使用header跳转到真实的页面上去，否则返回404代码。这样我们可以使用如： http://yourdomain/link.php?url=xxx来实现短网址访问。
继续，我们使用URL rewrite即重写功能来实现诸如可以通过地址：http://yourdomain/xxx 来访问。
以下是rewrite规则：
#Apache规则：
RewriteRule ^/(.*)$ /link.php?url=$1 [L]
 
#如果使用nginx，规则这样写：
rewrite ^/(.*)$ /link.php?url=$1 last;

方案2：PHP+ini实现短网址技术

对于方案1使用数据库的做法好处就是操作方便，而大量短网址查询需要做优化。而方案2则放弃数据库，使用ini配置，我们将短网址和真实网址配置在ini文件中，PHP直接通过parse_ini_file()读取ini文件，几行代码就可以实现短网址的跳转。
links.ini文件像这样配置：
baidu    = https://www.baidu.com/
qq        = http://www.qq.com/
hw        = http://www.111cn.net/
dm        = http://m.111cn.net

而index.php的代码可以这样写：

$links = parse_ini_file('links.ini');
 
if(isset($_GET['l']) && array_key_exists($_GET['l'], $links)){
    header('Location: ' . $links[$_GET['l']]);
}
else{
    header('HTTP/1.0 404 Not Found');
    echo 'Unknown link.';
}

当然，我们还需要配置下rewrite规则。

#Apache规则：

RewriteRule ^/(.*)$ /index.php?l=$1 [L]
 
#如果使用nginx，规则这样写：

rewrite ^/(.*)$ /index.php?l=$1 last;