PHP对接微信分享接口
# 1. 前置准备
1、首先你得有认证公众号,一年缴 300 元保护费的那种。
2、订阅号、服务号不限。
3、公众号后台获取 AppID 和 AppSecret,并设置 IP 白名单(你的服务器 IP)
4、设置 JS 安全域名(你的网站域名,必须是已备案的)
5、调用相关接口进行开发
# 2. 公众号配置
获取开发者 ID 和开发者密码,并设置 IP 白名单(即你的服务器 IP)。
在 设置 -> 公众号设置 -> 功能设置中 填入你的 JS 接口安全域名。
这个域名就是你自己需要调用接口的域名。比如:www.baidu.com
# 3. PHP 核心代码
<?php
class JSSDK {
private $appId;
private $appSecret;
private $url;
public function __construct($appId, $appSecret, $url) {
$this->appId = $appId;
$this->appSecret = $appSecret;
$this->url = $url;
}
public function getSignPackage() {
$jsapiTicket = $this->getJsApiTicket();
// 注意 URL 一定要动态获取,不能 hardcode.
$url = $this->url;
$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=$nonceStr×tamp=$timestamp&url=$url";
$signature = sha1($string);
$signPackage = array(
"appId" => $this->appId,
"nonceStr" => $nonceStr,
"timestamp" => $timestamp,
"url" => $url,
"signature" => $signature,
"rawString" => $string
);
echo json_encode($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
$data = json_decode($this->get_php_file("jsapi_ticket.php"));
if ($data->expire_time < time()) {
$accessToken = $this->getAccessToken();
// 如果是企业号用以下 URL 获取 ticket
// $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
$res = json_decode($this->httpGet($url));
$ticket = $res->ticket;
if ($ticket) {
$data->expire_time = time() + 7000;
$data->jsapi_ticket = $ticket;
$this->set_php_file("jsapi_ticket.php", json_encode($data));
}
} 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
$data = json_decode($this->get_php_file("access_token.php"));
if ($data->expire_time < time()) {
// 如果是企业号用以下URL获取access_token
// $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
$res = json_decode($this->httpGet($url));
$access_token = $res->access_token;
if ($access_token) {
$data->expire_time = time() + 7000;
$data->access_token = $access_token;
$this->set_php_file("access_token.php", json_encode($data));
}
} else {
$access_token = $data->access_token;
}
return $access_token;
}
private function httpGet($url) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 500);
// 为保证第三方服务器与微信服务器之间数据传输的安全性,所有微信接口采用https方式调用,必须使用下面2行代码打开ssl安全校验。
// 如果在部署过程中代码在此处验证失败,请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true);
curl_setopt($curl, CURLOPT_URL, $url);
$res = curl_exec($curl);
curl_close($curl);
return $res;
}
private function get_php_file($filename) {
return trim(substr(file_get_contents($filename), 15));
}
private function set_php_file($filename, $content) {
$fp = fopen($filename, "w");
fwrite($fp, "<?php exit();?>" . $content);
fclose($fp);
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
<?php
// header("Access-Control-Allow-Origin: *"); // 跨域的时候才需要
require_once "jssdk.php";
$appId = '';// 这里填写公众号后台获取到的AppID
$appSecret = '';// 这里填写公众号后台获取到的AppSecret
$url = isset($_GET['link'])?$_GET['link']:0;
$jssdk = new JSSDK($appId, $appSecret, $url);
$signPackage = $jssdk->GetSignPackage();
1
2
3
4
5
6
7
8
9
10
2
3
4
5
6
7
8
9
10
# 4. 前端页面配置接口
将 上述 php 代码放置网站根目录 wxsdk 内
<!-- 微信分享 -->
<script src="//res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
<script type="text/javascript">
var url = encodeURIComponent(location.href.split("#")[0]);
$.ajax({
type: "get",
url: "https://" + window.location.host + "/wxsdk/sample.php?link=" + url,// 注意如果网站没启用SSL,前方的https改为http
dataType: "json",
contentType: "application/json; charset=utf-8",
success: function(e) {
var d = e.appId,
i = e.timestamp,
t = e.nonceStr,
n = e.signature;
wx.config({
debug: 0, //如果分享失败,把0改成1开启错误提示看看
appId: d,
timestamp: i,
nonceStr: t,
signature: n,
jsApiList: ['updateAppMessageShareData', 'updateTimelineShareData']
});
var s_title = document.title, // 分享标题
s_desc = document.getElementsByName('description')[0].content, //分享描述
s_link = location.href.split("#")[0], //分享链接
s_imgUrl = "https://" + window.location.host + "/weixinpic.png"; // 分享图标 注意如果网站没启用SSL,前方的https改为http
wx.ready(function() {
// 自定义“分享给朋友”及“分享到QQ”按钮的分享内容(1.4.0)
wx.updateAppMessageShareData({
title: s_title, // 分享标题
desc: s_desc, // 分享描述
link: s_link, // 分享链接
imgUrl: s_imgUrl
})
// 自定义“分享到朋友圈”及“分享到QQ空间”按钮的分享内容(1.4.0)
wx.updateTimelineShareData({
title: s_title, // 分享标题
link: s_link, // 分享链接
imgUrl: s_imgUrl
})
})
}
});
</script>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
上次更新: 7/1/2024, 2:17:37 AM