Detect RSS feeds on page ??

[cmple]

Hi everyone !

 

I've been trying to find a solution for days... please Help!

 

Basically i need to find an RSS feed on given webpage,  lets say: http://news.yahoo.com/rss

they don't provide a file extension like: topstories.rss, so the only way for it to work on any page, is to go to the file contents,

and parse the first line, if it is: <?xml ..... then consider it as a feed.

 

here is what i tried:

 

$contents = file_get_contents('http://news.yahoo.com/rss'); //Get all contents of the file,

 

$strText = preg_match_all(' Link regEx ', $contents , $value); //take out the links only.

$value = array_unique ($value[0]);

 

foreach($value as $key){

 

$content=file($key);

 

}

 

so the only problem is that: file(); takes the whole file in order to process it, so if the page has lets say 250 links , it would take FOREVER to get all those files, just because i need only 1st line. :-\

 

Question: is there a way to get only the 1st, 2nd line of the file, and Not loading it in full. or is there another way?

 

 

Thank you.

 

 

[per1os]

http://us2.php.net/manual/en/function.fread.php

 

If you have url_wrappers or something like that on you could use that.

 

cURL may help ???

 

http://us2.php.net/manual/en/function.fgets.php

 

That may also help as you can just get the first line.

 

Hope that helps. If all else fails, why not just check for that <?xml string first before parsing the links?

[cmple]

http://us2.php.net/manual/en/function.fread.php

 

If you have url_wrappers or something like that on you could use that.

 

cURL may help ???

 

http://us2.php.net/manual/en/function.fgets.php

 

That may also help as you can just get the first line.

 

Hope that helps. If all else fails, why not just check for that <?xml string first before parsing the links?

 

That Helped !!

 

Thanks alot !