paginate_links

Source code

function paginate_links( $args = '' ) {

	$defaults = array(

		'base' => '%_%', // http://example.com/all_posts.php%_% : %_% is replaced by format (below)

		'format' => '?page=%#%', // ?page=%#% : %#% is replaced by the page number

		'total' => 1,

		'current' => 0,

		'show_all' => false,

		'prev_next' => true,

		'prev_text' => __('« Previous'),

		'next_text' => __('Next »'),

		'end_size' => 1,

		'mid_size' => 2,

		'type' => 'plain',

		'add_args' => false, // array of query args to add

		'add_fragment' => ''

	);



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

	extract($args, EXTR_SKIP);



	// Who knows what else people pass in $args

	$total = (int) $total;

	if ( $total < 2 )

		return;

	$current  = (int) $current;

	$end_size = 0  < (int) $end_size ? (int) $end_size : 1; // Out of bounds?  Make it the default.

	$mid_size = 0 <= (int) $mid_size ? (int) $mid_size : 2;

	$add_args = is_array($add_args) ? $add_args : false;

	$r = '';

	$page_links = array();

	$n = 0;

	$dots = false;



	if ( $prev_next && $current && 1 < $current ) :

		$link = str_replace('%_%', 2 == $current ? '' : $format, $base);

		$link = str_replace('%#%', $current - 1, $link);

		if ( $add_args )

			$link = add_query_arg( $add_args, $link );

		$link .= $add_fragment;

		$page_links[] = '<a class="prev page-numbers" href="' . esc_url( apply_filters( 'paginate_links', $link ) ) . '">' . $prev_text . '</a>';

	endif;

	for ( $n = 1; $n <= $total; $n++ ) :

		$n_display = number_format_i18n($n);

		if ( $n == $current ) :

			$page_links[] = "<span class='page-numbers current'>$n_display</span>";

			$dots = true;

		else :

			if ( $show_all || ( $n <= $end_size || ( $current && $n >= $current - $mid_size && $n <= $current + $mid_size ) || $n > $total - $end_size ) ) :

				$link = str_replace('%_%', 1 == $n ? '' : $format, $base);

				$link = str_replace('%#%', $n, $link);

				if ( $add_args )

					$link = add_query_arg( $add_args, $link );

				$link .= $add_fragment;

				$page_links[] = "<a class='page-numbers' href='" . esc_url( apply_filters( 'paginate_links', $link ) ) . "'>$n_display</a>";

				$dots = true;

			elseif ( $dots && !$show_all ) :

				$page_links[] = '<span class="page-numbers dots">' . __( '&hellip;' ) . '</span>';

				$dots = false;

			endif;

		endif;

	endfor;

	if ( $prev_next && $current && ( $current < $total || -1 == $total ) ) :

		$link = str_replace('%_%', $format, $base);

		$link = str_replace('%#%', $current + 1, $link);

		if ( $add_args )

			$link = add_query_arg( $add_args, $link );

		$link .= $add_fragment;

		$page_links[] = '<a class="next page-numbers" href="' . esc_url( apply_filters( 'paginate_links', $link ) ) . '">' . $next_text . '</a>';

	endif;

	switch ( $type ) :

		case 'array' :

			return $page_links;

			break;

		case 'list' :

			$r .= "<ul class='page-numbers'>\n\t<li>";

			$r .= join("</li>\n\t<li>", $page_links);

			$r .= "</li>\n</ul>\n";

			break;

		default :

			$r = join("\n", $page_links);

			break;

	endswitch;

	return $r;

}