get_posts_nav_link

Source code

function get_posts_nav_link( $args = array() ) {

	global $wp_query;



	$return = '';



	if ( !is_singular() ) {

		$defaults = array(

			'sep' => ' — ',

			'prelabel' => __('« Previous Page'),

			'nxtlabel' => __('Next Page »'),

		);

		$args = wp_parse_args( $args, $defaults );



		$max_num_pages = $wp_query->max_num_pages;

		$paged = get_query_var('paged');



		//only have sep if there's both prev and next results

		if ($paged < 2 || $paged >= $max_num_pages) {

			$args['sep'] = '';

		}



		if ( $max_num_pages > 1 ) {

			$return = get_previous_posts_link($args['prelabel']);

			$return .= preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $args['sep']);

			$return .= get_next_posts_link($args['nxtlabel']);

		}

	}

	return $return;



}