blacklist/exclude page paths if the path starts with a certain string (for Google Analytics Top Content Widget)

gtc-path-auto-blacklist.php

<?php 

function gtc_pages_filter_automatically_remove_items( $pages ) {

	$string_to_exclude = '/category/';

	foreach ( $pages as $index => $page ) {
		// if path contains our excluded string, then remove it.
		if ( false !== strpos( $page['path'], $string_to_exclude ) ) {
			unset( $pages[ $index ] );
		}
	}

	return $pages;
}

add_filter( 'gtc_pages_filter', 'gtc_pages_filter_automatically_remove_items' );