snmp switch traffic交换机带宽

上代码

 <?php
 function getstr1($strall,$str1,$str2,$html_charset='utf-8'){
     $i1=mb_strpos($strall,$str1,0,$html_charset);
     if(!is_int($i1)){return '';}
     $i1R=$i1+mb_strlen($str1,$html_charset);
     $i2=mb_strpos($strall,$str2,$i1+mb_strlen($str1,$html_charset),$html_charset);
     if(!is_int($i2)){return '';}
     return(mb_substr($strall,$i1R,$i2-$i1R,$html_charset));
 }
 class traffic{
     private $lastArr=array();
     function __construct(){
         $this->lastArr['time']=0;
         $this->lastArr['out']=0;
         $this->lastArr['in']=0;
     }
     function doinfo($time,$in,$out){
         $timeI=$time-$this->lastArr['time'];
         $outI=$out-$this->lastArr['out'];
         if($outI<0)$outI+=pow(2,32);
         $inI=$in-$this->lastArr['in'];
         if($inI<0)$inI+=pow(2,32);
         $strOut=number_format($outI/$timeI/1024/1024,2);
         $strIn=number_format($inI/$timeI/1024/1024,2);
         echo 'Out: '.$strOut.'MB/s,  In: '.$strIn."MB/s\n";
         $this->lastArr['time']=$time;
         $this->lastArr['out']=$out;
         $this->lastArr['in']=$in;
     }
 }
 $session = new SNMP(SNMP::VERSION_2C, "10.105.1.1", "public");
 $arr=array();
 $arr[]='iso.3.6.1.2.1.1.3.0';
 $n=6;
 $arr[]='iso.3.6.1.2.1.2.2.1.10.'.$n;//in
 $arr[]='iso.3.6.1.2.1.2.2.1.16.'.$n;//out
 $traffic=new traffic();
 while(1){
     $p=$session->get($arr);
     $timeticks=$p['iso.3.6.1.2.1.1.3.0'];
     $timeticks=getstr1($timeticks,'(',')');
     $timeticks=$timeticks/100;
     $iIn=$p['iso.3.6.1.2.1.2.2.1.10.6'];
     $iIn=explode(': ',$iIn)[1];
     $iIn=floatval($iIn);
     $iOut=$p['iso.3.6.1.2.1.2.2.1.16.6'];
     $iOut=explode(': ',$iOut)[1];
     $iOut=floatval($iOut);
     $traffic->doinfo($timeticks,$iIn,$iOut);
     sleep(2);
 }
 $session->close();