[wpexplorer's WordPress pagination script enhanced.] #wordpress

wpex_pagination.php

/*
 * Numbered Pagination
 * http://www.wpexplorer.com/pagination-wordpress-theme/
 */
if ( !function_exists( 'wpex_pagination' ) ) {
	function wpex_pagination($wpex_query) {
		$prev_arrow = is_rtl() ? '→' : '←';
		$next_arrow = is_rtl() ? '←' : '→';

		/*
		 * Using ${varname} check for a variable with the same name has the value of varname  
		 * http://www.php.net/manual/en/language.variables.variable.php
		 * P.S. I know $$varname procude the same result and is much short, but I personnaly prefer the ${}
		 */
		global $wp_query,${$wpex_query};
		if ( ${$wpex_query} ) {
			$total = ${$wpex_query}->max_num_pages;
		} else {
			$total = $wp_query->max_num_pages;
		}

		$big = 999999999; // need an unlikely integer
		if( $total > 1 )  {
			if( !$current_page = get_query_var('paged') )
				$current_page = 1;
			if( get_option('permalink_structure') ) {
				$format = 'page/%#%/';
			} else {
				$format = '&paged=%#%';
			}
			echo paginate_links(array(
				'base'			=> str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
				'format'		=> $format,
				'current'		=> max( 1, get_query_var('paged') ),
				'total' 		=> $total,
				'mid_size'		=> 3,
				'type' 			=> 'list',
				'prev_text'		=> $prev_arrow,
				'next_text'		=> $next_arrow,
			) );
		}
	}
}

/* And here is an exemple of usage in a template */
$activities = array();
$activities_args = array( 'post_type' => 'activities' );
$activities_query = new WP_Query( $activities_args );
if ( $activities_query->have_posts() ) {
	while ( $activities_query->have_posts() ) {
		$activities_query->the_post();
		the_title( '<h1>', '</h1>' );
		the_content();
	} /* while ( have_posts() ) */
} /* if ( have_posts() ) */
wpex_pagination('activities_query');

great

nice :)