check site is up

[bnicolaescu]

Hello everybody,

 

how can one automatically check a site is up?

 

I tried some php functions:

 

if (!fsockopen($_POST['url'], 80))

.......

 

and

 

if (!file_get_contents(....) )

.............

 

 

 

but there are some sites that are not correctly validated.

 

for instance this one: honeybeauty.ro. The php functions above return null and the site is up...

 

thanks a lot!

[mpharo]

There is a great open source project called Smokeping

 

http://oss.oetiker.ch/smokeping/

 

It uses functions like echoping to actually bring up a web page at a set interval to check for up or downtime. You can also set up e-mail notifications for a certain threashold.

[bnicolaescu]

but I just need to check if the site is up just one time... for some sites php functions used to open connections fail....

[bnicolaescu]

Warning: fsockopen() [function.fsockopen]: unable to connect to www.honeybeauty.ro:80 (No route to host) in /home/etesterr/public_html/clickme/ping.php on line 5

[Crow]

<?php
$url = 'google.com';
$url = gethostbyname($url);
echo (@fsockopen($url,'80')) ? 'Online' : 'Offline';
?>

 

If you use @ before fsockopen you can suppress the error messages from the socket

 

-Steve

 

EDIT: Shortened the code a little >_>