缩放分页器

很抱歉,这是一堆代码。希望这些评论足以告诉你它是如何工作的-如果你留下评论,我可能会补充一些。

    /**
     * Get a spread of pages, for when there are too many to list in a single <select>
     * Adapted from phpMyAdmin common.lib.php PMA_pageselector function
     *
     * @param integer total number of items
     * @param integer the current page
     * @param integer the total number of pages
     * @param integer the number of pages below which all pages should be listed
     * @param integer the number of pages to show at the start
     * @param integer the number of pages to show at the end
     * @param integer how often to show pages, as a percentage
     * @param integer the number to show around the current page
     */
    protected function pages($rows, $pageNow = 1, $nbTotalPage = 1, $showAll = 200, $sliceStart = 5, $sliceEnd = 5, $percent = 20, $range = 10)
    {
        if ($nbTotalPage < $showAll)
            return range(1, $nbTotalPage);

        // Always show the first $sliceStart pages
        $pages = range(1, $sliceStart);

        // Always show last $sliceStart pages
        for ($i = $nbTotalPage - $sliceEnd; $i <= $nbTotalPage; $i++)
            $pages[] = $i;

        $i = $sliceStart;
        $x = $nbTotalPage - $sliceEnd;
        $met_boundary = false;
        while ($i <= $x)
        {
            if ($i >= ($pageNow - $range) && $i <= ($pageNow + $range))
            {
                // If our pageselector comes near the current page, we use 1
                // counter increments
                $i++;
                $met_boundary = true;
            }
            else
            {
                // We add the percentate increment to our current page to
                // hop to the next one in range
                $i = $i + floor($nbTotalPage / $percent);

                // Make sure that we do not cross our boundaries.
                if ($i > ($pageNow - $range) && !$met_boundary)
                  $i = $pageNow - $range;
            }

            if ($i > 0 && $i <= $x)
                $pages[] = $i;
        }

        // Since because of ellipsing of the current page some numbers may be double,
        // we unify our array:
        sort($pages);
        return array_unique($pages);
    }