I would like to be able to show users how long my server has been up. Anyone have a php script for this?

I am on a linux server.

<?
$text['minutes'] = "minutes";
$text['hours'] = "hours";
$text['days'] = "days";

function uptime ()
{
global $text;
$fd = fopen('/proc/uptime', 'r');
$ar_buf = split(' ', fgets($fd, 4096));
fclose($fd);

$sys_ticks = trim($ar_buf[0]);

$min = $sys_ticks / 60;
$hours = $min / 60;
$days = floor($hours / 24);
$hours = floor($hours - ($days * 24));
$min = floor($min - ($days * 60 * 24) - ($hours * 60));

if ($days != 0) {
$result = "$days ".$text['days']." ";
}

if ($hours != 0) {
$result .= "$hours ".$text['hours']." ";
}
$result .= "$min ".$text['minutes'];

return $result;
}


$ack = uptime()



echo $ack
?>


The function is basicly taken directly from phpSysIfno...

Thanx... workes great!

cant you just do: echo shell("uptime"); on a linux box?

/proc/uptime doesn't exist on FreeBSD boxes:

mooneer@capricorn:~$ cat /proc/uptime
cat: /proc/uptime: No such file or directory
mooneer@capricorn:~$

You can try this instead if you want something that works in all Unixes:

<?php
function uptime() {
$uptime = `uptime`;
preg_match("/up (.+), (\\d+) users/", $uptime, $matches);
return $matches[1];
}

echo uptime();
?>

Originally posted by mind21_98
/proc/uptime doesn't exist on FreeBSD boxes:

mooneer@capricorn:~$ cat /proc/uptime
cat: /proc/uptime: No such file or directory
mooneer@capricorn:~$

You can try this instead if you want something that works in all Unixes:

<?php
function uptime() {
$uptime = `uptime`;
preg_match("/up (.+), (\\d+) users/", $uptime, $matches);
return $matches[1];
}

echo uptime();
?>

He didn't ask for FreeBSD, otherwise I would have gave him the code used in phpSysInfo for BSDs...



function uptime () {
$sys_ticks = $this->get_sys_ticks();

$min = $sys_ticks / 60;
$hours = $min / 60;
$days = floor($hours / 24);
$hours = floor($hours - ($days * 24));
$min = floor($min - ($days * 60 * 24) - ($hours * 60));

if ( $days != 0 ) {
$result = "$days days, ";
}

if ( $hours != 0 ) {
$result .= "$hours hours, ";
}
$result .= "$min minutes";

return $result;
}


function get_sys_ticks () {
$s = explode(' ', $this->grab_key('kern.boottime'));
$a = ereg_replace('{ ', '', $s[3]);
$sys_ticks = time() - $a;
return $sys_ticks;
}

$uptime = uptime();

echo $uptime;
?>


Calling a program isn't always a good idea, this method uses the kernel keys to get information instead of using something like /proc/uptime...

Couldnt you also just use backquotes for shell commands? such as

<? echo `uptime` ?> ?

Originally posted by OwenCK
Couldnt you also just use backquotes for shell commands? such as

<? echo `uptime` ?> ?


Yes but its hard to control the way it looks with just that...

Sometimes 4:54pm up 47 days, 20:42, 1 user, load average: 0.00, 0.00, 0.00

Isn't what you want on the page....

Simple little implementation of the 'w' command:

http://support.racknine.com/uptime.php

Monitors 5 random servers we have at RackShack. We have a hardware device w/ MRTG for our local stuff, this is a neat idea to track and eventually graph processor utilization I toyed with awhile ago.

Sincerely,

-Matt

...2 Years Later (I am a little slow :stickout)

Originally posted by mind21_98
/proc/uptime doesn't exist on FreeBSD boxes:

mooneer@capricorn:~$ cat /proc/uptime
cat: /proc/uptime: No such file or directory
mooneer@capricorn:~$

You can try this instead if you want something that works in all Unixes:

<?php
function uptime() {
$uptime = `uptime`;
preg_match("/up (.+), (\\d+) users/", $uptime, $matches);
return $matches[1];
}

echo uptime();
?>

Actually, I found that if you have one person logged into SSH the script will not run. I had to remove the 's' from 'users/':

<?php
function uptime() {
$uptime = `uptime`;
preg_match("/up (.+), (\\d+) user/", $uptime, $matches);
return $matches[1];
}

echo uptime();
?>

Originally posted by XtReMaTriX
...2 Years Later (I am a little slow :stickout)



Actually, I found that if you have one person logged into SSH the script will not run. I had to remove the 's' from 'users/':

<?php
function uptime() {
$uptime = `uptime`;
preg_match("/up (.+), (\\d+) user/", $uptime, $matches);
return $matches[1];
}

echo uptime();
?>

Wow. I didn't notice. Thanks!

<?PHP system('uptime'); ?>