PHP を使用してパブリック アカウントのカスタマー サービス メッセージ送信機能を実装する方法

<?php
$appid = 'your_appid';
$secret = 'your_secret';
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appid}&secret={$secret}";

$response = file_get_contents($url);
$data = json_decode($response, true);

$access_token = $data['access_token'];
?>

<?php
$openid = 'user_openid';
$content = 'Hello, this is a test message.';

$url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token={$access_token}";

$data = array(
    'touser' => $openid,
    'msgtype' => 'text',
    'text' => array('content' => $content)
);

$options = array(
    'http' => array(
        'header' => "Content-type: application/x-www-form-urlencoded
",
        'method' => 'POST',
        'content' => http_build_query($data),
    ),
);

$context = stream_context_create($options);
$response = file_get_contents($url, false, $context);
$result = json_decode($response, true);

if ($result['errcode'] == 0) {
    echo '消息发送成功';
} else {
    echo '消息发送失败';
}
?>