微信公众号开发
小程序发送公众号模板消息
本文主要是介绍小程序发送公众号模板消息，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
前置条件：
1.小程序和公众号必须关联 微信公众平台上进入设置 进行关联 https://mp.weixin.qq.com/
2.需要在微信开放平台注册账号(注册费用三百元) 然后进行关联操作 https://open.weixin.qq.com
3.公众号模板消息
整体思路：
用户授权openid->换取unionID(前端获取)
小程序内部引导用户关注公众号(official-account组件) //前端实现
公众号批量获取关注用户的openid（https://api.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN|）
拿公众号的openid换取UnionID https://api.weixin.qq.com/cgi-bin/user/info?access_token=ACCESS_TOKEN&openid=OPENID&lang=zh_CN
两个unionid相同的 就是同一个用户
具体实现：
1.小程序获取unionid和openid
public function openid(){
$code=$request->input('code'); //前端调用wx.login方法拿到的code
$appid = 'XXXXXXXX';
$secret = 'XXXXXXXX';
$url = 'https://api.weixin.qq.com/sns/jscode2session?appid=' . $appid . '&secret=' . $secret . '&js_code=' . $code . '&grant_type=authorization_code';
$res = $this->getJson($url); //如果不报错 结果应该为session_key openid unionid
$openid=$res['openid'];
$unionid=$res['unionid'];
}
function getJson($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
return json_decode($output, true);
}
2.获取关注公众号的用户列表 文档地址：https://developers.weixin.qq.com/doc/offiaccount/User_Management/Getting_a_User_List.html #获取关注公众号的openid列表
public function openid(){
$access_token = $this->returnAssKey();
$NEXT_OPENID="oD5bqvy5elflcaJZIfrow8t9v6uU"; //该参数是从那个openid开始获取之后的所有openid 如果不填 默认从第一个开始获取
$url="https://api.weixin.qq.com/cgi-bin/user/get?access_token=$access_token&next_openid=$NEXT_OPENID";
$ass_key = $this->getJson($url); //如果没有报错 会返回三个参数
$openids=$ass_key['data']['openid']; //这就是关注公众号的用户列表
}
#获取access_token
public function returnAsskey()
{
$appid="XXXXXX";
$secret="XXXXXX"; //公众号的appid和secret
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$secret";
$ass_key = $this->curlGet($url);
$a1 = $ass_key->access_token;
return $a1;
}
#请求链接地址
public function curlGet($url)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
return json_decode($data); //对数据进行json解码
}
3.获取某个公众号的openid所对应的unionid 文档地址：https://developers.weixin.qq.com/doc/offiaccount/User_Management/Get_users_basic_information_UnionID.html#UinonId 此处我用的是一对一接口,即一个openid换取一个unionid，文档中还有个批量用openid换取unionid的接口,按需求选择
#获取unionid
public function unionid(){
$openid="XXXXX"; //刚才获取到的openid列表中 要换取的某个openid
$access_token = $this->returnAssKey();
$url="https://api.weixin.qq.com/cgi-bin/user/info?access_token=$access_token&openid=$openid&lang=zh_CN";
$ass_key = $this->getJson($url); //如果没有报错 回返回一大堆数据 我们只需要其中的unionid 其他看需要即可
$unionid=$ass_key['unionid']; //最终获取到的unionid
}
#获取access_token
public function returnAsskey()
{
$appid="XXXXXX";
$secret="XXXXXX"; //公众号的appid和secret
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$secret";
$ass_key = $this->curlGet($url);
$a1 = $ass_key->access_token;
return $a1;
}
#请求链接地址
public function curlGet($url)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
return json_decode($data); //对数据进行json解码
}
#请求链接地址
function getJson($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
return json_decode($output, true);
}
4.发送公众号模板消息
public function temMsg($order,$name,$phone)
{
$openid=“XXXXXX"; //公众号的openid
$temid = 'vyCW15G-d-2PeNcUzz_kgod_ksNPSwjSKDOGYdvbljE'; //模板id
$access_token = $this->returnAssKey();
$url= 'https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=' . $access_token;
$time=date('Y-m-d H:i',time());
$data = array( //这里一定要按照微信给的格式
"touser" => "$openid",
"template_id" => $temid,
"data" => array(
"first" => array(
"value" => '您有一个新订单,请及时确认！',
"color" => "#173177",
),
"keyword1" => array(
"value" =>"$order",
"color" => "#173177",
),
"keyword3" => array(
"value" => "$name",
"color" => "#173177",
),
"keyword4" => array(
"value" => "$phone",
"color" => "#173177",
),
'remark' => array('value' => "下单时间：$time,请及时到后台根据处理订单!",
'color'=> '#FF0000',
),
),
);
$res = $this->postCurl($url, $data, 'json'); //将data数组转换为json数据
if ($res) {
return ['state' => '0', 'msg' => $res];
} else {
return ['state' => '1', 'msg' => '系统错误！'];
}
}
#获取access_token
public function returnAsskey()
{
$appid="XXXXXX";
$secret="XXXXXX"; //公众号的appid和secret
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$secret";
$ass_key = $this->curlGet($url);
$a1 = $ass_key->access_token;
return $a1;
}
#请求链接 get方式
public function curlGet($url)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
return json_decode($data); //对数据进行json解码
}
#获取链接数据 以post方式
public function postCurl($url, $data, $type)
{
if ($type == 'json') {
$data = json_encode($data); //对数组进行json编码
$header = array("Content-type: application/json;charset=UTF-8", "Accept: application/json", "Cache-Control: no-cache", "Pragma: no-cache");
}
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
if (!empty($data)) {
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
$res = curl_exec($curl);
if (curl_errno($curl)) {
echo 'Error+' . curl_error($curl);
}
curl_close($curl);
return $res;
}
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