Wordpress pagination

wordpress-pagination.php

	/**
	 * Archive pagination
	 * @param string $prevText Previous page link text. Leave blank to ignore.
	 * @param string $nextText Next page link text. Leave blank to ignore.
	 * @param integer $break Number of page links to display before truncation. Set to 0 to ignore.
	 */
	public static function archive_pagination($prevText = 'Previous', $nextText = 'Next', $break = 10)
	{
		// Maximum pages
		global $wp_query;
		$pages = (int) $wp_query->max_num_pages; // This can return floating points =S

		// Current page (returns 0 if undefined)
		$current = ( get_query_var('paged') ) ? get_query_var('paged') : 1;

		// Calculate if pagination requires truncating
		$pages_start	= 1;
		$pages_end		= $pages;
		$abbv_end		= false;
		$abbv_begin		= false;

		if ( $break && $pages > $break )
		{
			$split = ceil($break / 2);

			// Lower boundary break (1,2,3,4,5,6,7,8,9,10...)
			if ( $current < $split )
			{
				$pages_end	= $break;
				$abbv_end	= true;
			}

			// Middle boundary break (...5,6,7,8,9,10,11,12,13,14,15...)
			else if ( $current >= $split && $current < ($pages - $split) )
			{
				$pages_start	= $current - $split;
				$pages_end		= $current + $split;
				$abbv_begin		= $abbv_end = true;
			}

			// End boundary break (...10,11,12,13,14,15,16,17,18,19,20)
			else if ( $current >= ($pages - $split) )
			{
				$pages_start	= $pages - $break;
				$abbv_begin		= true;
			}
		}

		// Print previous link
		if ( $current > 1 && strlen($prevText) )
		{
			echo '<li><a href="' , get_pagenum_link($current - 1) , '" rel="prev">' , $prevText , "</a></li>\n";
		}

		// Print ellipsis
		if ( $abbv_begin )
		{
			echo '<li>&hellip;</li>';
		}

		// Print page numbers
		for ($i = $pages_start; $i <= $pages_end; $i++)
		{
			$selected = $current == $i ? ' class="selected"' : '';
			echo '<li' , $selected , '><a href="' , get_pagenum_link($i) , '">' , $i , "</a></li>\n";
		}

		// Print ellipsis
		if ( $abbv_end )
		{
			echo '<li>&hellip;</li>';
		}

		// Print next link
		if ( $current < $pages && strlen($nextText) )
		{
			echo '<li><a href="' , get_pagenum_link($current + 1) , '" rel="next">' , $nextText , "</a></li>\n";
		}
	}