directory backlink check

Hi

I need a spot of help from a knowledgeable php’er please.

What I would like to do is have a function check for a backlink from dmoz and the yahoo dir.

This is the current structure I have for checking backlinks through yahoo site explorer.

/* 
Function to check Yahoo Backlinks
*/ 
function yahoo_back($url){ 
    $site = fopen('http://siteexplorer.search.yahoo.com/search?p='.urlencode($url).'&bwm=i&bwmf=a&bwms=p','r'); 
    while($cont = fread($site,1024657)){ 
        $total .= $cont; 
    } 
    fclose($site); 
    $match_expression = '/of about <strong>(.*) <\/strong>/Us'; 
    preg_match($match_expression,$total,$matches); 
    return $matches[1]; 
} 

Code (markup):

What I need is to return a ‘0’ or ‘1’ on unsuccessful/successful find when checking the following domains…

http://search.dmoz.org/cgi-bin/search?search=
http://search.yahoo.com/search/dir?p=

Cheers

 

if(preg_match('/.*No Open Directory Project results found.*/iU', strip_tags($szSiteContent)))
{
	return false;
}

return true;

PHP:

Or something to the same effect.

 

Thanks for your help!

I have tried the following but I only get a positive '1' result never a negative. Any ideas what I may have wrong?

/* 
Function to check Dmoz Backlink
*/ 
       function getDmoz () {
            $site = fopen('http://search.dmoz.org/cgi-bin/search?search='.urlencode($url).'','r'); 
            if(preg_match('/.*No Open Directory Project results found.*/iU', strip_tags($szSiteContent))) {
                $value = false;
            } else {
                $value = true;
            }
            return $value;
        } 

PHP:

 

Couple of problems with the code; I cleaned it up a little.

1. You were calling fopen(), but not following it with an fread and fclose to actually get the site content. Replaced all of that with file_get_contents()
2. You weren't passing in the $url paramter
3. You passed a non-existent $szSiteContent variable to stript_tags(); replaced it with $site, which is what you intended

Tested and works.

function getDmoz($url) 
{
	$site = file_get_contents('http://search.dmoz.org/cgi-bin/search?search='.urlencode($url),'r'); 
	return preg_match('/.*No Open Directory Project results found.*/iU', strip_tags($site)) ? false : true;
}

PHP:

 

Thanks to both of you! Cheers for your help

 

code is:
function getDmoz($url)
{
$site = file_get_contents('http://search.dmoz.org/cgi-bin/search?search='.urlencode($url),'r');
return preg_match('/.*No Open Directory Project results found.*/iU', strip_tags($site)) ? false : true;
}

 

file_get_contents() doesn't recognize the parameter "r".