PHP sysinfo script
Posted by Admin on Mon 31st May 2010 06:30
raw | new post

<?php
function mksize($bytes) {
        if ($bytes < 1000 * 1024)
                return number_format($bytes / 1024, 2) . " KB";
        if ($bytes < 1000 * 1048576)
                return number_format($bytes / 1048576, 2) . " MB";
        if ($bytes < 1000 * 1073741824)
                return number_format($bytes / 1073741824, 2) . " GB";
}

// Operating system
$temp = file_get_contents("/proc/version");
if ($temp) {
        $osarray = explode(" ", $temp);

        $distros = array(
                "Gentoo", "/etc/gentoo-release",
                "Fedora Core", "/etc/fedora-release",
                "Slackware", "/etc/slackware-version",
                "Cobalt", "/etc/cobalt-release",
                "Debian", "/etc/debian_version",
                "Mandrake", "/etc/mandrake-release",
                "Mandrake", "/etc/mandrakelinux-release",
                "Yellow Dog", "/etc/yellowdog-release",
                "Red Hat", "/etc/redhat-release",
                "Arch Linux", "/etc/arch-release"
        );

        $distro = "";
        if (file_exists("/etc/lsb-release")) {
                $lsb = file_get_contents("/etc/lsb-release");
                preg_match('!DISTRIB_DESCRIPTION="(.*)"!', $lsb, $distro);
                $distro = $distro[1];
        } else do {
                if (file_exists($distros[1])) {
                        $distro = trim(file_get_contents($distros[1]));
                        $distro = "$distros[0] ".preg_replace("/[^0-9]*([0-9.]+)[^0-9.]{0,1}.*/", '\1', $distro);
                        break;
                }
                array_shift($distros); array_shift($distros);
        } while (count($distros));

        if (!$distro) {
                $distro = "Unknown";
        }

        $operatingsystem = "$distro ($osarray[0] $osarray[2])";

} else {
        $operatingsystem = "(N/A)";
}


// Users and load information
$reguptime = trim(exec("uptime"));
if ($reguptime) {
        if (preg_match("/up (.*), *(\d) (users?), .*: (.*), (.*), (.*)/", $reguptime, $uptime)) {
                $up = preg_replace("!(\d\d):(\d\d)!", '\1h\2m', $uptime[1]);
                $users[0] = $uptime[2];
                $users[1] = $uptime[3];
                $loadnow = $uptime[4];
                $load5 = $uptime[5];
                $load15 = $uptime[6];
        }
} else {
        $up = "--";
        $users[0] = "NA";
        $users[1] = "--";
        $loadnow = "NA";
        $load5 = "--";
        $load15 = "--";
}


// RAM usage
$meminfo = file_get_contents("/proc/meminfo");
preg_match("!^MemTotal:\s*(.*) kB!m", $meminfo, $memtotal);
$memtotal = $memtotal[1] * 1024;
preg_match("!^MemFree:\s*(.*) kB!m", $meminfo, $memfree);
$memfree = $memfree[1] * 1024;
preg_match("!^Buffers:\s*(.*) kB!m", $meminfo, $buffers);
$buffers = $buffers[1] * 1024;
preg_match("!^Cached:\s*(.*) kB!m", $meminfo, $cached);
$cached = $cached[1] * 1024;

$memused = mksize($memtotal - $memfree - $buffers - $cached);
$memtotal = mksize($memtotal);


echo("OS: $operatingsystem\n");
echo("RAM Usage: $memused/$memtotal\n");
echo("Uptime: $up\n");
echo("Current Users: $users[0]\n");
echo("Load:\n\tNow: $loadnow\n\tLast5 mins: $load5\n\tLast 15mins: $load15\n");
?>