1. Advertising
    y u no do it?

    Advertising (learn more)

    Advertise virtually anything here, with CPM banner ads, CPM email ads and CPC contextual links. You can target relevant areas of the site and show ads based on geographical location of the user if you wish.

    Starts at just $1 per CPM or $0.10 per CPC.

reciprocal link RE

Discussion in 'PHP' started by vixh, Oct 21, 2005.

0
  1. #1
    How do I write reciprocal link check regular expression?
    
function isReciprocal() {
		$page =$this->_fetchUrl('http://'.$this->backward_link);
		$re="<a(.*)?href=\"http://(.*)?".$this->our_url."(.*)\"";
		return preg_match(")$re)i", $page);
	}
    PHP:
    But code above not works everywhere, couldnot check such links <a href='LINK'> etc.
    Maybe someones knows good RE?
     
    vixh, Oct 21, 2005 IP
  2. dpak

    dpak Peon

    Messages:
    111
    Likes Received:
    0
    Best Answers:
    0
    Trophy Points:
    0
    #2
    That regular expression looks like it should work... as long as $this->our_url doesn't contain http://. If you just want to be able to match single and double quotes, you could change it to this... 

    $re="<a(.*)?href=[\"']?http://(.*)?".$this->our_url."(.*)[\"']?";
    PHP:
     
    dpak, Oct 21, 2005 IP
  3. michele

    michele Peon

    Messages:
    30
    Likes Received:
    1
    Best Answers:
    0
    Trophy Points:
    0
    #3
    Any reason why a simple ereg wont work here?

    
function isReciprocal() {
   $page =$this->_fetchUrl('http://'.$this->backward_link);
   if (eregi($this->our_url,$page)) { return 1; }
   else { return 0; }
}
    PHP:
    ... or something like that.

    If fetchUrl() returns a string (I assume it does), maybe one of the substring type functions might also be useful.
     
    michele, Oct 21, 2005 IP