1 <style>
 2 h1{text-align:center; /*author:ningci dev date:2017-04-27 22:21*/}
 3 *{background-color:#000; color:#fff;}
 4 pre{margin:10px;padding:10px;border:1px solid #00f; color:#f6c608;}
 5 </style>
 6 <h1>rel time network status !</h1>
 7 <h3>day</h3>
 8 <pre>
 9 <?php
10 echo system("vnstat -i eth0 -d");
11 ?>
12 </pre>
13 <h3>hour</h3>
14 <pre>
15 <?php
16 echo system("vnstat -i eth0 -h");
17 ?>
18 </pre>
19 
20 <h3>month</h3>
21 <pre>
22 <?php
23 echo system("vnstat -i eth0 -m");
24 ?>
25 </pre>