微信模板消息接口 php

<?php
// 获取access_token
function getAccessToken($appId, $appSecret) {
    $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appId}&secret={$appSecret}";
    $res = json_decode(file_get_contents($url));
    return $res->access_token;
}

// 发送模板消息
function sendTemplateMessage($accessToken, $openId, $templateId, $data, $url) {
    $url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={$accessToken}";
    $postArr = [
        'touser' => $openId,
        'template_id' => $templateId,
        'url' => $url,
        'data' => $data
    ];
    $postStr = json_encode($postArr);
    $res = json_decode(file_get_contents($url, 'POST', $postStr));
    if ($res->errcode != 0) {
        echo "发送失败：" . $res->errmsg;
    } else {
        echo "发送成功";
    }
}

// 示例调用
$appId = 'your_app_id';
$appSecret = 'your_app_secret';
$openId = 'user_open_id';
$templateId = 'your_template_id';
$data = [
    'first' => ['value' => 'Hello', 'color' => '#173177'],
    'keyword1' => ['value' => 'Test', 'color' => '#173177'],
    'keyword2' => ['value' => '2023-04-01', 'color' => '#173177'],
    'remark' => ['value' => 'This is a test message', 'color' => '#173177']
];
$url = 'http://www.example.com';

$accessToken = getAccessToken($appId, $appSecret);
sendTemplateMessage($accessToken, $openId, $templateId, $data, $url);
?>

// 缓存access_token并定期更新
$accessTokenCache = [];
$accessTokenExpireTime = 0;

function getAccessToken($appId, $appSecret) {
    global $accessTokenCache, $accessTokenExpireTime;
    $now = time();
    if (empty($accessTokenCache) || $now > $accessTokenExpireTime) {
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appId}&secret={$appSecret}";
        $res = json_decode(file_get_contents($url));
        $accessTokenCache = $res->access_token;
        $accessTokenExpireTime = $now + 7200;
    }
    return $accessTokenCache;
}