Why do I get this stupid furecking error? (Misspelled on purpose!)

[3raser]

Sorry for the title.

 

Warning: fsockopen() [function.fsockopen]: unable to connect to udp://:0 (Failed to parse address "") in /home/a9726309/public_html/server.php on line 4

 

Code:

 

<?php

$server = $_POST['ip'];
$port = $_POST['port'];
$status = fsockopen( 'udp://' . $server, $port, $errno, $errstr, 3 );
if ( !$status ) {
//include 'offline.gif';
die('<img src="offline.gif" />');
} else {
//include 'online.gif';
die('<img src="online.gif" />');
}

?>

[waynew]

What's coming in through $_POST['ip'] and how are you so sure that something is coming through $_POST['ip'] at all?

[3raser]

http://webmasters.webatu.com/

[3raser]

Wait, I fixed an error. I didn't have method="POST" but now I get this error:

 

Warning: fsockopen() expects parameter 2 to be long, string given in /home/a9726309/public_html/server.php on line 5

[waynew]

How are you making sure that the user entered something in those textfields? I didn't enter anything. I just hit enter and got brought to a page that said

 

Warning: fsockopen() expects parameter 2 to be long, string given in /home/a9726309/public_html/server.php on line 5

[3raser]

Why the hell doesn't it work anyways? I currently don't care about if the user has entered something. I just want to get the damn thing working. And when ever I enter random information it keeps saying it's online. WTF?

 

New code:

 

<?php

$server = $_POST['ip'];
$port = $_POST['port'];

if (!$server || !$port)
die ("One of the required fields has not been filled out!");

$status = fsockopen( 'udp://' . $server, $port, $errno, $errstr, 3 );
if ( !$status ) {

die('<img src="offline.png" />');
} else {

die('<img src="online.png" />');
}

?>

 

Same error as before.

[waynew]

Are you not specifying a port? You have $port as a variable, but I don't see it being set. Usually, it's supposed to be 80.

[waynew]

My apologies. I forgot that you're using udp:

 

http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers

[MadTechie]

Warning: fsockopen() expects parameter 2 to be long, string given in /home/a9726309/public_html/server.php on line 5

2nd parameter is port... it expects a long and your passing a string!

 

just convert it to an int

ie

$port = (int)$_POST['port'];

[MadTechie]

Why the hell doesn't it work anyways?

 

Define working.. it does exactly what you asked it to do.. what where you expecting ?

[3raser]

I mean when I type in aaa for the IP and 5555 for the port, it gives me an online message. o.O?

[MadTechie]

works here!

[3raser]

MadTechie, no it doesn't. It's suppose to display an OFFLINE message if it's offline or false information.......

[MadTechie]

I said HERE meaning on MY PC.

Code is fine, check server logs (also you may want to turn error reporting on.. during testing)