libpcap embedding into PHP

gistfile1.php

<?php

$r = phpcap_create('eth0', PHPCAP_DEV_PROMISC);

phpcap_dispatch($r, function($packet) { 

     $unpack = unpack('H12macdest/H12macsrc/H4ethtype/H24/a4ipsrc/a4ipdest',$packet);
     printf("Got a packet, from %s(%s) to %s(%s)\n",
                           inet_ntop($unpack['ipsrc']),
                           $unpack['macsrc'],
                           inet_ntop($unpack['ipdest']),
                           $unpack['macdest']);
                                       }
                , 3 );

/*
Got a packet, from 192.168.35.171(b499ba567e00) to 157.156.123.81(00090f090005)
Got a packet, from 157.156.123.81(00090f090005) to 192.168.35.171(b499ba567e00)
Got a packet, from 192.168.35.171(b499ba567e00) to 157.156.123.81(00090f090005)
*/