Same Facebook like button over multiple pages?

Question

What is considered the best method for 'like' buttons (same for twitter and google+) so that multiple pages use the same one?

If i have an article spanned over several pages, it's giving each page a unique like button and i want it to be the same one. I'd also like to try an automated solution if you know of one.

Using wordpress, I'm currently thinking of using a custom field to input the url directly, but that's not as automated as I'd like. What is the solution?

Currently thinking this might be the easiest:

<?php
//Attempt to get page one of a reviews url for social bar on extra review pages.
$socialfield=get_post_meta($post->ID, 'social_url', true);
//if isset & not blank else use the_permalink()
$socialfield=(isset($socialfield) && $socialfield!='')?$socialfield:the_permalink();

where 'social_url' is the custom field.

then do this:

<div class="fb-like" data-href="<?=$socialfield?>" data-send="false" data-width="450" data-show-faces="true"></div>

I just wish for a more automated method or at the very least confirmation that this is probably the best way to go.

Answer 1

when you get the like button you will get the codes something like this in HTML5 Tab

<div class="fb-like" data-href="http://www.example.com" data-send="false" data-width="450" data-show-faces="true"></div>

Just note the data-href="http://www.example.com" attribute,
now what to do, just get the parameter from the url something like http://www.example.com/post/first-post/ and set this value in data-href attribute.