2018年最新的H5微信分享(已封装成PHP分享类文件)

<?php /** * 微信分享逻辑 */ class WechatShare { public $appid=''; public $appsecret=''; public function getSignPackage() { $jsapiTicket = $this->getJsApiTicket(); $url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; $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 if (file_exists("jsapi_ticket.json")) { $data = json_decode(file_get_contents("jsapi_ticket.json"),true); if ($data['expire_time'] < time()) { $accessToken = $this->get_access_token(); $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$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']; } }else{ $accessToken = $this->get_access_token(); $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$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); } } return $ticket; } public function httpGet($url) { $curl = curl_init(); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_TIMEOUT, 500); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($curl, CURLOPT_URL, $url); $res = curl_exec($curl); curl_close($curl); return $res; } // 获取access_token public function get_access_token(){ $file='access_token'; if (file_exists($file)) { //读取access_token文件内容 $data = json_decode(file_get_contents($file),true); //判断access_token是否过期 if(time() - filemtime($file) < $data['expires_in']){ return $data["access_token"]; }else{ $url="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->appsecret}"; $httpdata=$this->httpGet($url); $data=json_decode($httpdata,true); //保存Access Token字符串到指定文件中 file_put_contents($file, $httpdata); return $data['access_token']; } }else{ $url="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->appsecret}"; $httpdata=$this->httpGet($url); $data=json_decode($httpdata,true); //保存Access Token字符串到指定文件中 file_put_contents($file, $httpdata); return $data['access_token']; } } }