php微信小程序开发教程

<?php
header("Content-Type: application/json; charset=utf-8");

// 获取微信小程序传来的code
$code = $_GET['code'];

// 使用code换取access_token和openid
$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=YOUR_APPID&secret=YOUR_APPSECRET&code=$code&grant_type=authorization_code";
$response = file_get_contents($url);
$result = json_decode($response, true);

if (isset($result['access_token']) && isset($result['openid'])) {
    // 获取用户信息
    $userInfoUrl = "https://api.weixin.qq.com/sns/userinfo?access_token={$result['access_token']}&openid={$result['openid']}";
    $userInfoResponse = file_get_contents($userInfoUrl);
    $userInfo = json_decode($userInfoResponse, true);

    // 处理用户信息，例如保存到数据库
    // ...

    echo json_encode(array('status' => 'success', 'data' => $userInfo));
} else {
    echo json_encode(array('status' => 'fail', 'msg' => '获取access_token失败'));
}
?>