// Unix-like server load averages
if (preg_match('/[c-z]:\\\.*/i', $_SERVER['PATH']))
{
$server_load = $lang['Server_loads_no'];
}
elseif ( file_exists('/proc/loadavg') ) {
if ( $fp = @fopen( '/proc/loadavg', 'r' ) ) {
$data = @fread( $fp, 6 );
@fclose($fp);

$loaded = explode(" ", $data);
$server_load = trim($load_avg[0]);
}
}
else {
$loaded = @exec('uptime');
if (preg_match('/averages?: ([0-9\.]+),[\s]+([0-9\.]+),[\s]+([0-9\.]+)/i', $loaded, $srv_load)) {
$server_load = $srv_load[1].' '.$srv_load[2].' '.$srv_load[3];
}
}

$loaded = "No works";
if ( file_exists('/proc/loadavg') ) {
$loaded = "File exists - loadavg";
} else {
$loaded = @exec('uptime');

}
echo $loaded;

<?php
echo "START HERE<BR />";
if (file_exists('/proc/loadavg') ) {
echo"File exists - loadavg<br/>";
}
echo exec('uptime')."<br />";
system('uptime');
echo "<BR />END HERE";
?>