php仿discuz分页效果代码

/**
* 显示样式2
*/
function multi($mpurl,$page = 10) {

$multipage = '';
$mpurl .= strpos($mpurl, '?') ? '&' : '?';
$realpages = 1;
if($this->infocount > $this->items) {
$offset = 2;

$realpages = @ceil($this->infocount / $this->items);
$pages = $this->maxpages && $this->maxpages < $realpages ? $this->maxpages : $realpages;

if($page > $pages) {
$from = 1;
$to = $pages;
} else {
$from = $this->pageno - $offset;
$to = $from + $page - 1;
if($from < 1) {
$to = $this->pageno + 1 - $from;
$from = 1;
if($to - $from < $page) {
$to = $page;
}
} elseif($to > $pages) {
$from = $pages - $page + 1;
$to = $pages;
}
}

$multipage = ($this->pageno - $offset > 1 && $pages > $page ? '<a href="'http://www.jb51.net/article/.$mpurl.'page=1">1 ...</a>' : '').
($this->pageno > 1 ? '<a href="'http://www.jb51.net/article/.$mpurl.'page='.($this->pageno - 1).'"><<</a>' : '');
for($i = $from; $i <= $to; $i++) {
$multipage .= $i == $this->pageno ? '<a><strong>'.$i.'</strong></a>' :'<a href="'http://www.jb51.net/article/.$mpurl.'page='.$i.'">'.$i.'</a>';
}

$multipage .= ($this->pageno < $pages ? '<a href="'http://www.jb51.net/article/.$mpurl.'page='.($this->pageno + 1).'">>></a>' : '').
($to < $pages ? '<a href="'http://www.jb51.net/article/.$mpurl.'page='.$pages.'">... '.$realpages.'</a>' : '').
($pages > $page ? '<kbd><input type="text" size="3" onkeydown="if(event.keyCode==13) {window.location=''http://www.jb51.net/article/.$mpurl.'page='+this.value; return false;}" /></kbd>' : '');

$multipage = $multipage ? '<div><a> '.$this->infocount.' </a><a> '.$this->pageno.'http://www.jb51.net/'.$pages.' </a>'.$multipage.'</div>' : '';
}
return $multipage;
}

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