Linux下的PHP实时流量统计程序 王道

本程序分析/proc/net/ip_conntrack来进行分析实时在线及流量情况，精度不敢说，但是很实用。

做的有点太水了。不过能用就好

#!/usr/local/bin/php -q
<?php
$my_OverIp = array ();
$my_OverBytes = array ();
$k = 0;
$kk = 0;
$my_s=1;
$fd = fopen ( "/proc/net/ip_conntrack", "r" );
while ( ! feof ( $fd ) ) {
        $my_FileLineCache = fgets ( $fd );
        preg_match ( "/src=[0-9]+.[0-9]+.[0-9]+.[0-9]{1,3}/", $my_FileLineCache, $match_ip );
        preg_match ( "/bytes=[0-9]+/", $my_FileLineCache, $match_bytes );
        for($i = 0; $i < sizeof ( $my_OverIp ); $i ++) {
                if ($my_OverIp [$i] == $match_ip [0]) {
                        $k = 1;
                        $kk = $i;
                        break;
                }
        }
        $my_byte=preg_replace("/bytes=/","",$match_bytes [0]);
        if ($k == 0) {
                $my_OverIp [] = $match_ip [0];
                $my_OverBytes [] = 0;
        } else {
                if ($my_s % 2 == 0)
                {
                        $my_OverBytes [$kk] += $my_byte;
                }
        }
        $k = 0;
        $my_s++;
}
fclose ( $fd );
for($j = 0; $j < sizeof ( $my_OverIp ); $j ++) {
        if ($j<>sizeof ( $my_OverIp )-1)
        {
                print $my_OverIp[$j];
                print " bytes=$my_OverBytes[$j]\n";
        }
}
?>