[Plugin: WordPress-Amazon-Associate] "Associate Filter" doesn't work the way I expect

Vic:

Can you please send me a sample url where this is occurring, should be a simple modification to correct as you require.

Thanks,
Matthew J. Denton

Vic, thanks for sharing the info. The plugin is working as all you need to do is append your affiliate id to a non-affiliate link to make it an affiliate link. However what is happening is that I did not account for there being duplicate links on the page which is causing the double append to occur.

I have a fix for it by modifying the filter_amazon_associate_tag funtion in WPAA.php to

public function filter_amazon_associate_tag($content) {
        //Get Matches
        $regex = '|<a.*?href=[""\'](?<url>.*?amazon.*?)[""\'].*?>.*?</a>|i';
        preg_match_all($regex, $content, $matches, PREG_PATTERN_ORDER);
        $filtered_matches = array_unique($matches['url']);
        foreach ($filtered_matches as $key => $match) {
            $orig_str = $match;
            $new_str = $this->replace_associate_tag( $orig_str );
            if( $orig_str != $new_str ) {
                $content = str_replace($orig_str, $new_str, $content);
            }
        }
        return $content;
    }

I’ll do a bug release shortly that will include this change.

> Matthew

Vic:

I’ve verified the links are correct. Within the Amazon Associate website under Links & Banners there is a link checker. Using the above modified function for removing duplicate links from the filter the output of a link is as follows: http://www.amazon.com/Harry-Potter-Deathly-Hallows-Part/dp/B001UV4XHY/?tag=scrran-20

Amazon’s Link Checker will correctly recognizes this as a valid tag for your account as replacing scrran-20 with my associate id is valid.

> Matthew J. Denton

Hi!

Version 1.5.1 is released that includes the update so that urls don’t get tagged more than once and are registered correctly.

Thanks Vic for pointing this issue out to me.

Matthew