Server Status Redirect?

[mullz]

Hi all,

Bit a n00b question but here goes..

I need a page which checks the status of a server then redirects when the result is back. I have this so far..

<?
function IsOnline($host,$port)
{
  $socket = fsockopen ($host,$port);
  if ($socket==FALSE)
    return FALSE;
  else
    return TRUE;
  @fclose($socket);
}

function DispImage($host,$port)
{
  if(IsOnline($host,$port)) 
    { ?>?URL=www.myserver.com<? }
  else
    { ?>?URL=bad.htm<? }
}

?>

The bits in black are the bits im not getting.. Say I ping www.myserver.com on port 80 and it comes back as a positive result.. then I want it to go to www.myserver.com.. but if the result comes back negative I need it to go to an error page.

Is this possible?

Many Thanks in advance..😃

Mullz

[noiseusse]

you can use the header() function to send http headers. I'm assuming your just doing http redirects and not sending people to a server on port 1080
try this and read the man page:
http://www.php.net/manual/en/function.header.php

function isOnline($host, $port){
 $fp = fsockopen($host, $port, $errno, $errstring, 15);
 if(!$fp){
 fclose($fp);
 header("Location: http://www.thisserver.com/bad.htm")
 }else{
 fclose($fp);
 header("Location: http://$host");
 }
}

hope that's what you're looking for

[mullz]

I still get an error with this..

<?php
ob_start();
?>

<?
function IsOnline($host,$port)
{
  $socket = fsockopen ($host,$port);
  if ($socket==FALSE)
    return FALSE;
  else
    return TRUE;
  @fclose($socket);
}

function DispImage($host,$port)
{
  if(IsOnline($host,$port)) 
header("Location: http://www.myserver.ac.uk")
  }else{
 fclose($fp);
 header("Location: http://www.myserver.ac.uk/404.htm");
 } 

?>

and I get this error with it

Parse error: parse error in /home/sit/public_html/status/service_statusad.php on line 20

Line 20 is

}else{

Cheers 4 help././

[mullz]

can no one help?

This is really frustrating.. 😕

[kevinsequeira]

on your original code try this

function DispImage($host,$port){
  if(IsOnline($host,$port)) {                         

   header("location:$host");
 } else{
 header("http://www.myserver.com/bad.html");
 }

}
?>

reg
kevin

[mullz]

thanks for the replies but this still isn't working..

I dont get the error message anymore but it wont redirect :mad:

Could some willing soul ave a look at the whole file?

[noiseusse]

ok. you were trying to open a sicket to 'http://www.myserver.com' instead of 'www.myserver.com'

do this instead

function IsOnline($host,$port)
{
  $url = parse_url($host);
  $socket = fsockopen ($url['host'],$port);
  if ($socket==FALSE)
    return FALSE;
  else
    return TRUE;
  @fclose($socket);
}

[mullz]

Absolutely doobry fanny tastic hunky doory namby pamby great hulubaloo!!!!!!!

Star that you are!!

Just to clarify.. why wouldn't [url]http://[/url] work?

Cheerss

[mullz]

Just a little addition.. how would i get the php script to email me if the server is down?
Many Grassy arsses..

[noiseusse]

'http://' is called the 'scheme' of a url here's a break down:

http://www.somewhere.com/stuff?q=a_value

[url]http://[/url] -- scheme
www.somewhere.com -- host
/stuff - path
q=a_value -- query

go try parse_url(). fsockopen takes a host as an argument, not a url.

to mail a note to yourself do this:

...//stuff you know
if(!fp){
mail('[e-mail]', 'some subject', 'some message');
}

there's lost more info on mail(). read this:
http://www.php.net/manual/tw/ref.mail.php

[mullz]

I have tried this to no avail.. Where abouts in the code do I put it?

does it have to be an else if?
many thanks for your help

[noiseusse]

Ok. deep breath

fsockopen returns a socket if it succeeds and false if it fails so when you are checking to see if fsockopen worked you can use if(!$fp) instead of if($fp == false). It's just shorter.

...so isOnline v0.2

function_IsOnline($host,$port)
{
$url_=_parse_url($host);
$fp_=_fsockopen_($url['host'],$port);

if_(!$fp){
 mail('[e-mail]',_'some subject',_'some message');
 return false;
}
 else{
  return_TRUE;
  fclose($socket);
 }
}

ignore those annoying underscores (wtf?)

[mullz]

OK.. so im understanding this better now.. thanks..

but..

<?php
ob_start();
?>

<?
function_IsOnline($host,$port)
{
$url_=_parse_url($host);
$fp_=_fsockopen_($url['host'],$port);

if_(!$fp){
 mail('[e-mail]',_'Server',_'The Server Seems to be down.');
 return false;
}
 else{
  return_TRUE;
  fclose($socket);
 }
function DispImage($host,$port){
  if(IsOnline($host,$port)) {                         

   header("location:$host");
 } else{
header( "Location: http://www.server.ac.uk/status/serverdown.htm" );
 }

}
?>

I get a parse error on line 7.

And I didn't get what you mean't by ignoring those underscores.. so I tried taking them out..(there back in now)

Many thanks for your help and patience..

[noiseusse]

The underscore character '_'

For some reason the syntax highlighter on this board is putting underscores where spaces should go.

The code I gave you should not contain any underscores. Just replace the underscores with spaces. If you're getting a parse error then just check your code. It's usually something simple like underscores all over the place snicker

[mullz]

Cheers dude.. much appreciated!!! 😃