技術標籤：PHP

        $cmd = "ps axu| egrep '(think testB)'|grep -v 'grep'|wc -l";
        $ret = shell_exec("$cmd");
        echo $ret;
        $ret = rtrim($ret, "\r\n");

        if($ret === "0") {
            $start_master_cmd = "nohup /home/pubsrv/php-7.2.27/bin/php  think testB >> /tmp/uctWorker.log 2>&1 &"
 
;
            $ret = shell_exec("$start_master_cmd");
        }

參考：https://www.cnblogs.com/dongruiha/p/6397170.html