<?php
$sites = array('wlscripting.com'); // Create a list of sites to check
foreach($sites as $site) { // Loop through each site and get uptime

$ch = curl_init(); // Initiate curl session
curl_setopt($ch, CURLOPT_URL, 'http://'.$site.'/linuxUptime.php'); // Set the URL of the uptime script
curl_setopt($ch, CURLOPT_HEADER, 0); // Disable header output
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // Return data as a string instead of output directly
$data=curl_exec($ch); // Execute curl commands
curl_close ($ch); // Close the curl session

echo $site.': '.$data.'<br />'; // Output value returned from the linuxUptime.php file
} // End server loop
?>

<?php
$toCheckURL = "www.wlscripting.com"; // The domain name of the site you want to check
// This all sets up the CURL actions to check the page
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $toCheckURL);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_MAXREDIRS, 10); //follow up to 10 redirections - avoids loops
$data = curl_exec($ch);
curl_close($ch);
// Get the headers from the $data to the $matches variable
preg_match_all("/HTTP\/1\.[1|0]\s(\d{3})/",$data,$matches);
$code = end($matches[1]);
//echo $code.' = ';
if(!$data) {
  // If CURL could not open the URL
  echo "Domain could not be found";
} else {
  // Show the correct information based on the status code
  switch($code) {
    case '200':
      echo "Page Found";
      break;
    case '401':
      echo "Unauthorized";
      break;
    case '403':
      echo "Forbidden";
      break;
    case '404':
      echo "Page Not Found";
      break;
    case '500':
      echo "Internal Server Error";
      break;
  }
}
?>

<pre>
<b>Uptime:</b>
<?php system("uptime"); ?>

<b>System Information:</b>
<?php system("uname -a"); ?>

<b>Memory Usage (MB):</b>
<?php system("free -m"); ?>

<b>Disk Usage:</b>
<?php system("df -h"); ?>

<b>CPU Information:</b>
<?php system("cat /proc/cpuinfo | grep \"model name\\|processor\""); ?>
</pre>

<?php
function prepWWW($url) {
  $replace = array("http://" => "", "www." => "");
  foreach($replace as $toReplace=>$replaceWith) {
    $url = str_replace($toReplace, $replaceWith, $url);
  }
  $parts = explode("/", $url);
  $newURL = strip_tags(addslashes($parts[0]));
  return $newURL;
}

$site = prepWWW("www.wlscripting.com");
$check = @fsockopen($site, 80);

if($check) {
  echo "$site is up";
} else {
  echo "$site is down";
}
?>

<?php
function linuxUptime() {
  $ut = strtok( exec( "cat /proc/uptime" ), "." );
  $days = sprintf( "%2d", ($ut/(3600*24)) );
  $hours = sprintf( "%2d", ( ($ut % (3600*24)) / 3600) );
  $min = sprintf( "%2d", ($ut % (3600*24) % 3600)/60  );
  $sec = sprintf( "%2d", ($ut % (3600*24) % 3600)%60  );
  return array( $days, $hours, $min, $sec );
}

$ut = linuxUptime();
// If you would like to show the seconds as well just add [ , $ut[3] seconds ] after minutes.
echo "Time since last reboot: $ut[0] days, $ut[1] hours, $ut[2] minutes";
?>

<?php
$load = explode(" ", exec("cat /proc/loadavg"));
echo 'Server Load: '.$load[0].'%&nbsp;&nbsp;'.$load[1].'%&nbsp;&nbsp;'.$load[2].'%';
?>