Getting Server Load via PHP

[nextgengames]

Right im trying to manage access to my site based on the load when a user visits. If its heavy they get directed to another server. Before someone suggests doing a DNS round robin, trust me i have looked at it.

So I know doing

system('uptime')

gets me a string like:

22:22:01 up 8 days, 11:51, 2 users, load average: 0.91, 0.84, 0.87

I tried substr to extract the 3 numbers to calculate load but it didnt go all to well. Kept getting weird outputs. I just need the 3 numbers so i can run my little load balancer calculation 🙂

Any ideas ?

[bogu]

Is this what u are looking for?

$result = "22:22:01 up 8 days, 11:51, 2 users, load average: 0.91, 0.84, 0.87";
$begin_str = 'load average:';
$tmp = substr($result,strpos($result,$begin_str)+strlen($begin_str));
$load_avrg_str = trim($tmp);
$load_avrg_arr = explode(',',$load_avrg_str);
foreach ($load_avrg_arr as $key=>$value) $load_avrg_arr[$key] = (double) trim($value);
$load_time = array_sum($load_avrg_arr)/count($load_avrg_arr);
echo sprintf("%0.2f",$load_time);