<?php

//$appid 公众号配置的appid, $secret 公众号配置的secret,$info 给query的参数

public function appletpayment($appid,$secret,$info){
//获取access_token
$url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$appid.'&secret='.$secret;
$data =$this->curl_get($url);
$access_token = json_decode($data,true)['access_token'];
//通过scheme码进入的小程序页面路径，必须是已经发布的小程序存在的页面，不可携带query。path为空时会跳转小程序主页。
$post_data['jump_wxa']['path'] = '';
//通过scheme码进入小程序时的query，最大1024个字符，只支持数字，大小写英文以及部分特殊字符：!#$&'()*+,/:;=?@-._~
$post_data['jump_wxa']['query'] = 'orderID='.$info['orderID'].'&payType='.$info['payType'];
$post_data = json_encode($post_data);
// 生成的URL Scheme
$post_url = 'https://api.weixin.qq.com/wxa/generatescheme?access_token='.$access_token;
$result =$this->curl_post($post_url,$post_data);
$jumpUrl = json_decode($result,true)['openlink'];
return $jumpUrl;
}

//curl get方式
public function curl_get($url)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
$data = curl_exec($curl);
curl_close($curl);
return $data;
}

//curl post方式
public function curl_post($url, $post_data = '', $timeout = 3000)
{
header("Content-type:text/html;charset=utf-8");
$ch = curl_init();
curl_setopt ($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_POST, 1);
curl_setopt ($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_HEADER, false);
$file_contents = curl_exec($ch);
curl_close($ch);
return $file_contents;
}