PHPを使用してパブリックアカウントのテンプレートメッセージ送信機能を実装する方法

function getAccessToken($appId, $appSecret) {
    $apiUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $appId . "&secret=" . $appSecret;
    $response = file_get_contents($apiUrl);
    $result = json_decode($response, true);
    
    // Check if access token is valid
    if(isset($result['access_token'])) {
        return $result['access_token'];
    } else {
        // Handle error
        return false;
    }
}

$accessToken = getAccessToken($appId, $appSecret);

function sendTemplateMessage($accessToken, $openId, $templateId, $data) {
    $apiUrl = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" . $accessToken;

    $postData = array(
        'touser' => $openId,
        'template_id' => $templateId,
        'data' => $data
    );

    $jsonData = json_encode($postData);

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $apiUrl);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonData);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
    $response = curl_exec($ch);
    curl_close($ch);

    // Handle response
    return $response;
}

// 要发送的模板消息的数据
$templateData = array(
    'first' => array('value' => '您好', 'color' => '#173177'),
    'keyword1' => array('value' => '模板消息', 'color' => '#173177'),
    'keyword2' => array('value' => '2020-01-01', 'color' => '#173177'),
    'remark' => array('value' => '感谢您的使用', 'color' => '#173177')
);

$response = sendTemplateMessage($accessToken, $openId, $templateId, $templateData);

// 处理发送结果
$result = json_decode($response, true);
if($result['errcode'] == 0) {
    echo "模板消息发送成功！";
} else {
    echo "模板消息发送失败，请稍后重试。错误信息：" . $result['errmsg'];
}