php发送微信消息

<?php
// 微信公众号的AppID和AppSecret
$appId = 'your_app_id';
$appSecret = 'your_app_secret';

// 获取access_token
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appId}&secret={$appSecret}";
$response = file_get_contents($url);
$result = json_decode($response, true);
$accessToken = $result['access_token'];

// 发送文本消息
$toUser = 'user_openid';
$content = 'Hello, this is a test message.';
$url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token={$accessToken}";
$data = array(
    'touser' => $toUser,
    'msgtype' => 'text',
    'text' => array(
        'content' => $content
    )
);
$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
        'method'  => 'POST',
        'content' => http_build_query($data)
    )
);
$context  = stream_context_create($options);
$result = file_get_contents($url, false, $context);
if ($result === FALSE) { /* Handle error */ }

echo $result;
?>