微信JS SDK PHP Demo

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微信JS SDK PHP Demo

微信JS-SDK PHP Demo JS接口安全域名自定义分享接口 jsapi_ticket 分享到朋友圈分享给朋友分享到QQ
原文：http://www.cnblogs.com/txw1958/p/weixin-js-sdk-php-demo.html

参考地址：

http://www.cnblogs.com/txw1958/p/weixin-js-sdk-php-demo.html

http://www.tuicool.com/articles/zI3Ura

官方文档：https://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html

----------------------------------------------------------------------------------------------------------

主文件index.php

<?php
class JSSDK {
private $appId;
private $appSecret;

public function __construct($appId = '', $appSecret = '') {
$this->appId = $appId;
$this->appSecret = $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
$data = json_decode(file_get_contents("jsapi_ticket.json"));
if ($data->expire_time < time()) {
$accessToken = $this->getAccessToken();
//定义传递的参数数组
$params['type'] = 'jsapi';
$params['access_token'] = $accessToken;
$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket";
$res = json_decode($this->httpGet($url,$params));
$ticket = isset($res->ticket) ? $res->ticket : NULL;
if ($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()) {
//定义传递的参数数组
$params['grant_type'] = 'client_credential';
$params['appid'] = $this->appId;
$params['secret'] = $this->appSecret;
$url = "https://api.weixin.qq.com/cgi-bin/token";
$res = json_decode($this->httpGet($url,$params));
$access_token = isset($res->access_token) ? $res->access_token : NULL;
if ($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($url,$params) {
$URL = $url . '?' . http_build_query($params);
$opts = array(
CURLOPT_TIMEOUT => 30,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HTTPHEADER => array(),
CURLOPT_URL => $URL
);
$curl = curl_init();
curl_setopt_array($curl, $opts);
$res = curl_exec($curl);
curl_close($curl);
return $res;
}
}

-----------------------------------------------------------------------------------------------------------

HTML页面中

wx.config({
debug: false,
appId: '<?php echo $signPackage["appId"];?>',
timestamp: <?php echo $signPackage["timestamp"];?>,
nonceStr: '<?php echo $signPackage["nonceStr"];?>',
signature: '<?php echo $signPackage["signature"];?>',
jsApiList: [
'onMenuShareTimeline',
'onMenuShareAppMessage'
]
});
wx.ready(function(){
wx.onMenuShareTimeline({
title: 'XXXXXXXXXXXXXXXXXXXXX', // 分享标题
link: 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXX', // 分享链接
imgUrl: 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX', // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
alert('感谢您的参与');
},
cancel: function () {
}
});
wx.onMenuShareAppMessage({
title: 'XXXXXXXXXXXXXXXXXXXX', // 分享标题
desc: 'XXXXXXXXXXXXXXXXXXXXXXX, // 分享描述
link: 'XXXXXXXXXXXXXXXXXXXXXXXXXXXx', // 分享链接
imgUrl: 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXX', // 分享图标
type: '', // 分享类型,music、video或link，不填默认为link
dataUrl: '', // 如果type是music或video，则要提供数据链接，默认为空
success: function () {
// 用户确认分享后执行的回调函数
alert('感谢您的参与');
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
wx.error(function(res){
// config信息验证失败会执行error函数，如签名过期导致验证失败，具体错误信息可以打开config的debug模式查看，
// 也可以在返回的res参数中查看，对于SPA可以在这里更新签名。
alert("errorMSG:"+res);
});
});

注：

1 要新建两个.php文件分别为access_token和jsapi_ticket 存在同级目录下目的为了比较是否过期

2 httpGet 方法是自己改进的与原文不太一样

3 页面调用时在html最上面写入

<?php
require_once "index.php";
$jssdk = new JSSDK;
$signPackage = $jssdk->GetSignPackage();
?>

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