PHP源码实现网站跳转微信打开小程序接口，实现其他平台引流到微信小程序，如快手、抖音等平台，实现网站快速跳转到小程序。进一步应用包括微信小程序支付功能以及跳转小程序观看广告后网页端下发奖励。

<?php

// 作者KongHen02
// 仅限非个人主体小程序 

$appid = ""; // 小程序appid
$appkey = ""; // 小程序密钥

// 获取微信开放平台token
$token = file_get_contents('https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$appid.'&secret='.$appkey);
$token = json_decode($token, true);
$token = $token["access_token"];

// 获取微信小程序schemeUrl
$url='https://api.weixin.qq.com/wxa/generatescheme?access_token='.$token;

$data = json_encode(array(
    "jump_wxa" => array(
        "path" => "/pages/index/index", // 页面地址
        "query" => "" // 需要传递的参数，可留空：a=****&b=*****······
        )
    )
);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_ENCODING, "");
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    "Accept: application/json, text/plain, */*",
    "Accept-Language: zh-CN,zh;q=0.9,en;q=0.8",
    "Content-Type: application/json",
    "Origin: https://api.weixin.qq.com",
    "Content-Type: application/json"
));
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_ENCODING, "gzip");

$result = curl_exec($ch);

curl_close($ch);

//提取link
$link = json_decode($result, true)["openlink"];

$data = array(
    'code'=>200,
    'url'=>$link
    );

exit(json_encode($data));

?>