Hi! Thanks for sharing your ideas through your blog.

I've trying to implement your code in a hand-made blogging system, but I receive some errors. I see that at the final part of the ping sending part, you're using the post URL to send the request, so the XML client always receive the HTML code from the post as answer, not the XML pingback server response.

I've tried simply to add this line:

$parts = parse_url($pburl);

just after constructing the parameters for the call, and it works. I'm doing something wrong or was a mistake in the original code?

Thanks for your help & time ( and sorry about my poor english... :P )

Um... Where did u get the valid_url function?

Sorry here's the valid_url code, it's not much in the way of security because it's you sending a pingback, not someone else:

function valid_url($url) {
if (!ereg('[()"'<>]', $url)) return(1);
return(0);
}

Thanks,

This'll come in handy when adding the pingback class to the mindCMS

In the pingbacks.php, what goes in the "if (..)" portions of the script?

An example would be great for learning, thanks!

Sorry for the noob-i-ness, but shouldn't your valid_url() function be as follows:

function valid_url($url) {
if (!ereg('[()"'<>]', $url)) return(1);
return(0);
}

// Note the escaped ' character

Hi,
i have some questions. How pbprocess() function is call out. Can you give source code. Thanks

I found that function, but i have another problem. Script gives me 105 fault. What does it means, where can i find the problem?

do you have the phpxmlrpc library installed and the paths for the requires set properly?

I find that problem. It was some mistakes in code. Thanks for that great script :)

For some reason I am having troubles understanding how to get this to work. I mean you've done the skeleton of it but the little bits I'm currently stumped on.

You don't have a small working version I could take a look at do you?

hi,
i try to implement your code,,
when i try to pingback to my site, it said the pingback.php is forbiden,
i've chmod the pingback.php to 777

Thanks for the code. I noticed that it was not working properly on sites that used x-header, but no html tag.. solution was that $parts needed to be reset to carry the values for the url provided by x-header:

foreach ($lines as $line) {
if (ereg("X-Pingback: ", $line)) {
list($pburl) = sscanf($line, "X-Pingback: %s");
$parts = parse_url($pburl);
//print "pingback url is $pburl<br />n";
}
}

I wrote this yesterday to get the X-Pingback header value.

In: URL of site that you would like to get the X-Pingback header value from.
Out: URL of X-Pingback server.



function GetXPingback($sURL) {
$clSession = curl_init();
$iTimeout = 30;

curl_setopt ($clSession, CURLOPT_URL, $sURL);
curl_setopt ($clSession, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($clSession, CURLOPT_CONNECTTIMEOUT, $iTimeout);
curl_setopt ($clSession, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt ($clSession, CURLOPT_HEADER, TRUE);
curl_setopt ($clSession, CURLOPT_NOBODY, TRUE);

$sScrape = curl_exec($clSession);
curl_close($clSession);

$sPingbackAddress = trim(TextBetween("X-Pingback: ", "n", $sScrape));

return $sPingbackAddress;
}

function TextBetween($s1,$s2,$s){
$s1 = strtolower($s1);
$s2 = strtolower($s2);
$L1 = strlen($s1);
$scheck = strtolower($s);
if($L1>0){$pos1 = strpos($scheck,$s1);} else {$pos1=0;}
if($pos1 !== false){
if($s2 == '') return substr($s,$pos1+$L1);
$pos2 = strpos(substr($scheck,$pos1+$L1),$s2);
if($pos2!==false) return substr($s,$pos1+$L1,$pos2);
}
return '';
}

Thank you for this useful post and links to relevant tools. This page is now in my favorites!

the other day I stumbled upon a pingback server/client implementation in php without the xmlrpc-bloat (see contact-url). I use the client in my blog, works flawlessly as far as I can tell.

I receive an error when I send pingback:

Pingback to http://some.url/ failed with error code 2 message Invalid return payload: enable debugging to examine incoming payload (XML error: > required at line 104, column 24).

okey, I remembe of this post fo future. $)

Hey!
Firstly, thanks for the tutorial. But I have the same problem as LukasS and I couldn't debug it.
My XML-RPC version is 2.2.1. Here is the error output:
XML error: not well-formed (invalid token) at line 8, column 35Pingback to http://xxx.com/foo.htm failed with error code 2 message Invalid return payload: enable debugging to examine incoming payload (XML error: not well-formed (invalid token) at line 8, column 35).
And there is my code: http://pastebin.com/m3a49fa67

I wrote a simple function for scanning a block of HTML and sending pingbacks to all of the links that it contained, without any libraries or includes. Link is in contact URL.

Get the X-Pingback value using a nice neat regex:

preg_match('/bX-Pingback: ([^s]+)/m', $sScrape , $match);

Where $match[1] will be your pingback server if it was present.

Thank you so much !

I needed to create a response pingback server for my phpbb2 board. I allready had a pingback module but not the server. Your first snipplet helped me out !

Regards,

Ramon
http://www.ramonfincken.com

In addition to finding the right pingback/trackback url ...

> http://www.ramonfincken.com/permalink/topic120.html

is this still valid 4 years later?