原生php 实现微信自定义分享

不依赖任何框架，原生php 实现微信自定义分享：

index.php //模板文件

jssdk.php

自行替换 appId 和 appSecret

<?php         include_once 'jssdk.php';    $jssdk = new /JSSDK("appId", "appSecret");    $signPackage = $jssdk->GetSignPackage();        $appid = 'appId';    $timestamp = $signPackage['timestamp'];    $nonceStr = $signPackage['nonceStr'];    $signature = $signPackage['signature'];?><script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>    <script>        wx.config({            appId: '<?php echo $appid;?>',            timestamp: '<?php echo $timestamp;?>',            nonceStr: '<?php echo $nonceStr;?>',            signature: '<?php echo $signature;?>',            jsApiList: [                'onMenuShareTimeline',                'onMenuShareAppMessage'            ]        });        wx.ready(function () {            shareWeixin();        });        function shareWeixin(){            wx.onMenuShareTimeline({                title: '标题',                link: '分享地址',                imgUrl: '分享图片地址',                success: function () {                    // 用户确认分享后执行的回调函数                    //window.location.href="";                },                cancel: function () {                    // 用户取消分享后执行的回调函数                }            });            wx.onMenuShareAppMessage({                title: '标题',                desc: '简介',                link: '分享地址',                imgUrl: '分享图片地址',                type: '',                dataUrl: '',                success: function () {                    // 用户确认分享后执行的回调函数                    //window.location.href="";                },                cancel: function () {                    // 用户取消分享后执行的回调函数                }            });        }    </script>

jssdk.php 代码如下：

<?phpclass JSSDK {  private $appId;  private $appSecret;  public function __construct($appId, $appSecret) {    $this->appId = $appId;    $this->appSecret = $appSecret;  }  public function getSignPackage() {    $jsapiTicket = $this->getJsApiTicket();    $url = "http://www.51ask.org/";    $timestamp = time();    $nonceStr = $this->createNonceStr();    // 这里参数的顺序要按照 key 值 ASCII 码升序排序    $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$url";    $signature = sha1($string);    $signPackage = array(      "appId"     => $this->appId,      "nonceStr"  => $nonceStr,      "timestamp" => $timestamp,      "url"       => $url,      "signature" => $signature,      "rawString" => $string    );    return $signPackage;   }  private function createNonceStr($length = 16) {    $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";    $str = "";    for ($i = 0; $i < $length; $i++) {      $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);    }    return $str;  }  private function getJsApiTicket() {    // jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例    $data = json_decode(file_get_contents("jsapi_ticket.json"));    if ($data->expire_time < time()) {      $accessToken = $this->getAccessToken();      $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";      $res = json_decode($this->httpGet($url));      $ticket = $res->ticket;      if ($ticket) {        $data->expire_time = time() + 7000;        $data->jsapi_ticket = $ticket;        $fp = fopen("jsapi_ticket.json", "w");        fwrite($fp, json_encode($data));        fclose($fp);      }    } else {      $ticket = $data->jsapi_ticket;    }    return $ticket;  }  private function getAccessToken() {    // access_token 应该全局存储与更新，以下代码以写入到文件中做示例    $data = json_decode(file_get_contents("access_token.json"));    if ($data->expire_time < time()) {      $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";      $res = json_decode($this->httpGet($url));      $access_token = $res->access_token;      if ($access_token) {        $data->expire_time = time() + 7000;        $data->access_token = $access_token;        $fp = fopen("access_token.json", "w");        fwrite($fp, json_encode($data));        fclose($fp);      }    } else {      $access_token = $data->access_token;    }    return $access_token;  }  private function httpGet($url) {    $curl = curl_init();    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);    curl_setopt($curl, CURLOPT_TIMEOUT, 500);    curl_setopt($curl, CURLOPT_URL, $url);    $res = curl_exec($curl);    curl_close($curl);    return $res;  }}