$appid='xxx';
$appsecret='xxxx';
$timestamp = time();
$noncestr = $this->getRandStr(15);
// dump();
$url = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token='. $this->get_token($appid,$appsecret) .'&type=jsapi';
$ret_json = $this->curl_get_contents($url);
$ret = json_decode($ret_json);
$ticket = $ret-> ticket;
//var_dump($ret);
$strvalue = 'jsapi_ticket='.$ticket.'&noncestr='.$noncestr.'&timestamp='.$timestamp.'&url=http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
$signature = sha1($strvalue);
$this->assign('timestamp',$timestamp);
$this->assign('nonceStr',$noncestr);
$this->assign('signature',$signature);
function get_token($appid,$appsecret){
 if(S('access_token')) return S('access_token');
 $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$appsecret";
 $ret_json = $this->curl_get_contents($url);
 $ret = json_decode($ret_json);
 if($ret -> access_token){
 S('access_token',$ret -> access_token,7200);
 return $ret -> access_token;
 }
}
function is_weixin(){
if (strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false ) {
return true;
}
return false;
}
function getRandStr($length){
 $str = 'abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
 $randString = '';
 $len = strlen($str)-1;
 for($i = 0;$i < $length;$i ++){
 $num = mt_rand(0, $len);
 $randString .= $str[$num];
 }
 return $randString;
}
function curl_get_contents($url){
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_TIMEOUT, 1);
 curl_setopt($ch, CURLOPT_MAXREDIRS, 200);
 curl_setopt($ch, CURLOPT_USERAGENT, _USERAGENT_);
 curl_setopt($ch, CURLOPT_REFERER, _REFERER_);
 @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
 $r = curl_exec($ch);
 curl_close($ch);
 return $r;
}

wx.config({
 debug: false, // 開啟調(diào)試模式,調(diào)用的所有api的返回值會在客戶端alert出來,若要查看傳入的參數(shù),可以在pc端打開,參數(shù)信息會通過log打出,僅在pc端時(shí)才會打印.
 appId: 'wxae7c36a1349c5868', // 必填,公眾號的唯一標(biāo)識
 timestamp: '{$timestamp}', // 必填,生成簽名的時(shí)間戳
 nonceStr: '{$nonceStr}', // 必填,生成簽名的隨機(jī)串
 signature: '{$signature}',// 必填,簽名,見附錄1
 jsApiList: ['onMenuShareTimeline','onMenuShareAppMessage'] // 必填,需要使用的JS接口列表,所有JS接口列表見附錄2
});
wx.ready(function(){
wx.onMenuShareTimeline({
 title: '{$contentInfo.title}', // 分享標(biāo)題
 link: window.location.href, // 分享鏈接
 imgUrl: 'http://'+window.location.host+'{$categoryInfo.image}', // 分享圖標(biāo)
 success: function () {
 // 用戶確認(rèn)分享后執(zhí)行的回調(diào)函數(shù)
 //alert(1111);
 //fxfunc();
 },
 cancel: function () {
 // 用戶取消分享后執(zhí)行的回調(diào)函數(shù)
 //alert("您取消了分享");
 }
});
wx.onMenuShareAppMessage({
 title: '{$contentInfo.title}', // 分享標(biāo)題
 desc: removeHTMLTag('{$contentInfo.content}'), // 分享描述
 link: window.location.href, // 分享鏈接
 imgUrl: 'http://'+window.location.host+'{$categoryInfo.image}', // 分享圖標(biāo)
 type: '', // 分享類型,music、video或link,不填默認(rèn)為link
 dataUrl: '', // 如果type是music或video,則要提供數(shù)據(jù)鏈接,默認(rèn)為空
 success: function () {
 // 用戶確認(rèn)分享后執(zhí)行的回調(diào)函數(shù)
 //fxfunc();
 },
 cancel: function () {
 //alert("您取消了分享");
 // 用戶取消分享后執(zhí)行的回調(diào)函數(shù)
 }
});
 // config信息驗(yàn)證后會執(zhí)行ready方法,所有接口調(diào)用都必須在config接口獲得結(jié)果之后,config是一個(gè)客戶端的異步操作,所以如果需要在頁面加載時(shí)就調(diào)用相關(guān)接口,則須把相關(guān)接口放在ready函數(shù)中調(diào)用來確保正確執(zhí)行.對于用戶觸發(fā)時(shí)才調(diào)用的接口,則可以直接調(diào)用,不需要放在ready函數(shù)中.
});
function removeHTMLTag(str) {
 str = str.replace(/<\/?[^>]*>/g,''); //去除HTML tag
 str = str.replace(/[ | ]*\n/g,'\n'); //去除行尾空白
 //str = str.replace(/\n[\s| | ]*\r/g,'\n'); //去除多余空行
 str=str.replace(/?/ig,'');//去掉?
 return str;
}