检测进程

        $sh = 'ps aux|grep -v grep|grep "/data/wwwroot/project/public/work.php"';
        $output = shell_exec($sh);
        if(!$output){
            $title = 'qmzg workman shutdown';
            $content = '进程挂了：/data/wwwroot/project/public/work.php';
        }else{
            echo '正常';
        }