Quick problem with getting a server status.

markfc

Hi There,

I was wondering if someone had a couple of minutes to spare.

I use the following code to check if http is running on one of our internal windows nt 200 servers ;

if ($fp = @fsockopen("servername", 80, $errno, $err,2)) {
echo "HTTP is Up" ;
} else {
echo "HTTP is Down" ;
}

which works great, however how can I find out if the server is actually up.

I would like to be able to ping the server and if it's up get a 1 back and 0 for it the server is down.

I know i should be using exec but not sure how to bring back whether the server is up or not.

Cheers.

Mark

chads2k2

Hey man, I am working on it right now just need to know what your server is on? Like is it Windows, Unix, Linux, other?

Thanks!

Chad

chads2k2

<?php
// Assume the link is alive to begin with.  It can change.
$dead = 0;


// Execute the ping command.  This was ran on a Windows XP box with PHP 4.3.9.
// If it's a unix box then it will be a bit different.

// :::::::::::  Windows XP
$output = exec('ping yahoo.com -n 1');
// :::::::::::  Windows 2000 / Linux / Unix
//$output = exec('ping yahoo.com');


// Trim off the whitespace at the beginning and end.
$output = trim($output);

// Strip off all the spaces.  They will be in the way.
$output = str_replace(" ","",$output);

// Turn your string you got from the exec() function into an array!
$output_array = explode(",",$output);

// Here is where you could use array_search() but I used foreach instead to
// see the logic in this.  Also it's easier to teach with Foreach (which you write)
// than to teach with a predefined function. :: haha ::
foreach ($output_array as $temp_value)
{
   // Checks to see if the current spot in the array
   // equals Recieved=0.  Which will mean it timed out
   // and a.k.a. "dead".
   if($temp_value == "Received=0")
   {
      // Change the indicator flag.
      $dead = 1;
      // Alternative coding:  Uncomment to use.
      // echo "Link is dead.";
   }
}

// Check to see if the flag changed.  Such as it turned "dead".
if($dead == 1)
{
   // Display that the link is not alive.
   echo "Link is dead.";
}else{
   // If it makes it through then it's alive! Whoo.
   echo "Link is alive!";
}
?>

That worked right now for me, but check it out and make sure it worked for you too. Let me know if you need anything else.

EDIT: I mispelled something. {smacks forehead} Dumb. Haha.

Chad