LINUX system parameter detection includes cpu, time, memory, etc._PHP tutorial

This Linux system parameter detection function can calculate the CPU of your current machine, how much memory is used, running time and update time

LINUX system parameter detection includes CPU, time, memory, etc.

    function sys_linux()
    {
        // CPU
        if (false === ($str = @file("/proc/cpuinfo"))) return false;
        $str = implode("", $str);
        @preg_match_all("/models+names{0,}:+s{0,}([ws)(.]+)[rn]+/", $str, $model);
        //@preg_match_all("/cpus+MHzs{0,}:+s{0,}([d.]+)[rn]+/", $str, $mhz);
        @preg_match_all("/caches+sizes{0,}:+s{0,}([d.]+s{0,}[A-Z]+[rn]+)/", $str, $cache);
        if (false !== is_array($model[1]))
            {
            $res['cpu']['num'] = sizeof($model[1]);
            for($i = 0; $i < $res['cpu']['num']; $i++)
            {
                $res['cpu']['detail'][] = "类型：".$model[1][$i]." 缓存：".$cache[1][$i];
            }
            if (false !== is_array($res['cpu']['detail'])) $res['cpu']['detail'] = implode("<br />", $res['cpu']['detail']);
            }
        
        
        // UPTIME
        if (false === ($str = @file("/proc/uptime"))) return false;
        $str = explode(" ", implode("", $str));
        $str = trim($str[0]);
        $min = $str / 60;
        $hours = $min / 60;
        $days = floor($hours / 24);
        $hours = floor($hours - ($days * 24));
        $min = floor($min - ($days * 60 * 24) - ($hours * 60));
        if ($days !== 0) $res['uptime'] = $days."天";
        if ($hours !== 0) $res['uptime'] .= $hours."小时";
        $res['uptime'] .= $min."分钟";
        
        // MEMORY
        if (false === ($str = @file("/proc/meminfo"))) return false;
        $str = implode("", $str);
        preg_match_all("/MemTotals{0,}:+s{0,}([d.]+).+?MemFrees{0,}:+s{0,}([d.]+).+?SwapTotals{0,}:+s{0,}([d.]+).+?SwapFrees{0,}:+s{0,}([d.]+)/s", $str, $buf);
        
        $res['memTotal'] = round($buf[1][0]/1024, 2);
        $res['memFree'] = round($buf[2][0]/1024, 2);
        $res['memUsed'] = ($res['memTotal']-$res['memFree']);
        $res['memPercent'] = (floatval($res['memTotal'])!=0)?round($res['memUsed']/$res['memTotal']*100,2):0;
        
        $res['swapTotal'] = round($buf[3][0]/1024, 2);
        $res['swapFree'] = round($buf[4][0]/1024, 2);
        $res['swapUsed'] = ($res['swapTotal']-$res['swapFree']);
        $res['swapPercent'] = (floatval($res['swapTotal'])!=0)?round($res['swapUsed']/$res['swapTotal']*100,2):0;
        
        // LOAD AVG
        if (false === ($str = @file("/proc/loadavg"))) return false;
        $str = explode(" ", implode("", $str));
        $str = array_chunk($str, 3);
        $res['loadAvg'] = implode(" ", $str[0]);

         return $res; What is the CPU of your current machine, how much memory is used, running time and update time
*/



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