Universal Analytics / WordPress

functions.php

<?php

function nt_ga_word_count() {

	global $post;
	$id = $post->ID;
	$count = str_word_count( get_post_field( 'post_content', $id ) );
	return ceil( $count / 100 ) * 100;

}

function nt_ga_post_age() {

	global $post;
	$id = $post->ID;
	$now = date('Y-m-d');
	$then = get_the_time('Y-m-d', $id);
	return (int)abs((strtotime($now) - strtotime($then))/(60*60*24*30)); 

}

function nt_ga_comment_count() {

	global $post;
	$id = $post->ID;
	$comments = wp_count_comments( $id );
	return $comments->approved;

}