html
<!DOCTYPE html>
<html lang="en"><head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title></title>
</head>
<body>
<input type="text" value="{$signPackage.appId}" id="id1" hidden="hidden" />
<input type="text" value="{$signPackage.timestamp}"id="id2" hidden="hidden" />
<input type="text" value="{$signPackage.nonceStr}" id="id3" hidden="hidden" />
<input type="text" value="{$signPackage.signature}" id="id4" hidden="hidden" />
<button id="button" class="btn btn-success" type="button" onclick="scanCode()" hidden="hidden"/>扫一扫!</button>
</body>
<script src="https://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>
<script src="__STATIC__/js/jquery.min.js"></script>
<script>
// 注意：所有的JS接口只能在公众号绑定的域名下调用，公众号开发者需要先登录微信公众平台进入“公众号设置”的“功能设置”里填写“JS接口安全域名”。
// 如果发现在 Android 不能分享自定义内容，请到官网下载最新的包覆盖安装，Android 自定义分享接口需升级至 6.0.2.58 版本及以上。
// 完整 JS-SDK 文档地址：<a rel="nofollow" href="http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html" target="_blank">http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html</a>
var appId=$('#id1').val();
var timestamp=$('#id2').val();
var nonceStr=$('#id3').val();
var signature=$('#id4').val();
function wxConfig() {
wx.config({
debug : true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId : appId, // 必填，公众号的唯一标识
timestamp : timestamp, // 必填，生成签名的时间戳
nonceStr : nonceStr, // 必填，生成签名的随机串
signature : signature,// 必填，签名，见附录1
jsApiList : [ "scanQRCode" ]
// 必填，需要使用的JS接口列表，所有JS接口列表见附录2
});
}
function scanCode() {
wx.scanQRCode({
needResult : 1,
scanType : [ "qrCode", "barCode" ],
success : function(res) {
console.log(res)
alert(JSON.stringify(res));
var result = res.resultStr;
},
fail : function(res) {
console.log(res)
// alert(JSON.stringify(res));
alert("没有权限，请拍照上传！请尽量靠近二维码拍照！");
$("#button").hide();
$("#div1").show();
$("#div2").show();
}
});
}
</script>
</html>
php获取签名
public function sys(){
$appid = '';
$secret = '';
//这里获取access_token
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$secret."";
$result = $this->https_request($url);
$json1 = json_decode($result,true);
//通过access_token获取ticket
$resu = $this->https_request($us);
$json = json_decode($resu,true);
//生成签名的时间戳
$timestamp = time();
//生成16位随机字符串$nonceStr = $this->createNonceStr();
//获取当前url
$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
$url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$string = "jsapi_ticket=".$json['ticket']."&noncestr=".$nonceStr."×tamp=".$timestamp."&url=".$url."";
//最重要的我也不知道叫什么
$signature = sha1($string);
$signPackage = array(
"appId"=>$appid,
"nonceStr"=>$nonceStr,
"timestamp"=>$timestamp,
"url"=>$url,
"signature"=>$signature,
"rawString"=>$string
);
return $signPackage;}
//zifuchuan
public function createNonceStr($length = 16) {
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
//回调查看
public function https_request($url,$data=null)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
if (!empty($data)){
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
curl_close($curl);
return $output;
}