<?php
/*
quick script to demonstrate making a persistent connection to gkrellmd, reading the number of bytes received
by the interface eth0 over 3 seconds and then calculating the average transfer rate, before disconnecting
Note that this example is just to demonstrate using a persistent connection. If you actually want to get the average
bandwidth use of a network interface, a much simpler way is to use gkrellm_client::get_interface_bandwidth_use()
*/
require '../php-gkrellm/php-gkrellm.inc.php';
$o_gkrellm = new gkrellm_client('localhost');
if (!$o_gkrellm->connect(true)) {
echo $o_gkrellm->get_last_error();
}
define('SAMPLE_SECONDS', 3);
$i_start_time = time();
while (time() - $i_start_time < SAMPLE_SECONDS) {
$o_update = $o_gkrellm->get_next_update();
if ($o_update && $o_update->get_type() == GKRELLM_UPDATE_NET) {
if (!$i_start_bytes) {
$i_start_bytes = $o_gkrellm->get_net_info()->get_interface('eth0')->get_rx();
}
}
}
$i_end_bytes = $o_gkrellm->get_net_info()->get_interface('eth0')->get_rx();
$i_end_time = time();
echo 'Avg: ' . ($i_end_bytes - $i_start_bytes) / ($i_end_time - $i_start_time) . ' bytes per second';
$o_gkrellm->disconnect();
