{php // 1. 仅微信浏览器执行 $is_wechat = strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false; if ($is_wechat) { // 2. 公众号配置（写死） $appid = 'wx79640aa54a902a07'; $appsecret = '6ee18463a4ee92d87b1997cef6ba701d'; // 3. 生成JSSDK签名（独立逻辑，避开Destoon冲突） function getWxSign($url, $appid, $appsecret) { // 3.1 获取access_token（缓存1小时） $token_file = DT_ROOT.'/cache/wx_token.txt'; if (file_exists($token_file) && time() - filemtime($token_file) < 3600) { $access_token = file_get_contents($token_file); } else { $token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=&secret="; $token_res = file_get_contents($token_url); $token_data = json_decode($token_res, true); $access_token = $token_data['access_token']; file_put_contents($token_file, $access_token); } // 3.2 获取jsapi_ticket（缓存1小时） $ticket_file = DT_ROOT.'/cache/wx_ticket.txt'; if (file_exists($ticket_file) && time() - filemtime($ticket_file) < 3600) { $jsapi_ticket = file_get_contents($ticket_file); } else { $ticket_url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=&type=jsapi"; $ticket_res = file_get_contents($ticket_url); $ticket_data = json_decode($ticket_res, true); $jsapi_ticket = $ticket_data['ticket']; file_put_contents($ticket_file, $jsapi_ticket); } // 3.3 生成签名 $timestamp = time(); $noncestr = md5(rand(1000,9999).time()); $string = "jsapi_ticket=&noncestr=×tamp=&url=https://m.kaosheng.com/down/index-htm-page-246.html"; $signature = sha1($string); return array( 'appId' => $appid, 'timestamp' => $timestamp, 'nonceStr' => $noncestr, 'signature' => $signature ); } // 4. 构造当前URL（去除锚点，确保签名正确） $current_url = 'https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']; $current_url = explode('#', $current_url)[0]; $signPackage = getWxSign($current_url, $appid, $appsecret); // 5. 传递参数到前端 $share_title = isset($title) ? $title : '考生网专属内容'; $share_link = $current_url; $share_icon = isset($thumb) ? $thumb : 'https://m.kaosheng.com/images/logo.png'; // 兜底logo } }