PHP推送消息至（企业微信）群机器人

//------------------机器人开始-----
            function send($data){
                $webhook = "https://机器人地址：webhook";
                $ch = curl_init();
                curl_setopt($ch, CURLOPT_URL, $webhook);
                curl_setopt($ch, CURLOPT_POST, true);
                curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
                curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
                curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_HTTPHEADER,array('Content-Type: application/json;charset=utf-8'));
                return curl_exec($ch);
            }
            // 文本卡片消息体
     
            $time = date('Y-m-d H:i:s');
            $postdata = [
                "msgtype"=>"markdown",
                "markdown"=>[
                    "content"=>"<font color=\"warning\">推送标题</font>
         >标签1:<font color=\"comment\">内容。。。</font>
         >标签2:<font color=\"comment\">内容。。。</font>
         >标签3:<font color=\"comment\">内容。。。</font>
         >标签4:<font color=\"comment\">内容。。。</font>
         >标签5:<font color=\"comment\">内容。。。</font>
         >时间:<font color=\"comment\">$time</font>"
                ],
            ];
            send(json_encode($postdata));
//------------------机器人完毕-----