代码如下谢谢 ，content是内容，key换成你自己的key谢谢，别用这个测试，这个的key 我改了，请你自行用自己的key

<?php
    $content = "要发送的信息";
    $key = "f3ec68c8d4f08f84b75fcead6a983e";
    $url = "https://app.qun.qq.com/cgi-bin/api/hookrobot_send?key=".$key;
    $body = "{\"content\": [ {\"type\":0,\"data\":\"".$content."\"}]}";
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $body);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array(
            'Content-Type: application/json; charset=utf-8',
            'Content-Length: ' . strlen($body)
        )
    );
    $response = curl_exec($curl);
    $httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
    curl_close($curl);
    echo "Send Over!";
?>