很抱歉出现代码块,但现在开始。希望这些评论足以告诉你它是如何工作的——如果留下评论,我可能会添加更多。
/**
* 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);
}
