简单好用的PHP分页类

<?php class Page {  private $total;   //总记录  private $pagesize;  //每页显示多少条  private $limit;   //limit  private $page;   //当前页码  private $pagenum;  //总页码  private $url;   //地址  private $bothnum;  //两边保持数字分页的量   //构造方法初始化  public function __construct($_total, $_pagesize) {   $this->total = $_total ? $_total : 1;   $this->pagesize = $_pagesize;  $this->pagenum = ceil($this->total / $this->pagesize);   $this->page = $this->setPage();   $this->limit = "LIMIT ".($this->page-1)*$this->pagesize.",$this->pagesize";   $this->url = $this->setUrl();   $this->bothnum = 2;  }   //拦截器  private function __get($_key) {   return $this->$_key;  }   //获取当前页码  private function setPage() {   if (!empty($_GET['page'])) {    if ($_GET['page'] > 0) {     if ($_GET['page'] > $this->pagenum) {      return $this->pagenum;     } else {      return $_GET['page'];     }    } else {     return 1;    }   } else {    return 1;   }  }    //获取地址  private function setUrl() {   $_url = $_SERVER["REQUEST_URI"];   $_par = parse_url($_url);   if (isset($_par['query'])) {    parse_str($_par['query'],$_query);    unset($_query['page']);    $_url = $_par['path'].'?'.http_build_query($_query);   }   return $_url;  }  //数字目录  private function pageList() {   for ($i=$this->bothnum;$i>=1;$i--) {   $_page = $this->page-$i;   if ($_page < 1) continue;    $_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';   }   $_pagelist .= ' <span class="me">'.$this->page.'</span> ';   for ($i=1;$i<=$this->bothnum;$i++) {    $_page = $this->page+$i;    if ($_page > $this->pagenum) break;    $_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';   }   return $_pagelist;  }   //首页  private function first() {   if ($this->page > $this->bothnum+1) {    return ' <a href="'.$this->url.'">1</a> ...';   }  }   //上一页  private function prev() {   if ($this->page == 1) {    return '<span class="disabled">上一页</span>';   }   return ' <a href="'.$this->url.'&page='.($this->page-1).'">上一页</a> ';  }   //下一页  private function next() {   if ($this->page == $this->pagenum) {    return '<span class="disabled">下一页</span>';   }   return ' <a href="'.$this->url.'&page='.($this->page+1).'">下一页</a> ';  }   //尾页  private function last() {   if ($this->pagenum - $this->page > $this->bothnum) {    return ' ...<a href="'.$this->url.'&page='.$this->pagenum.'">'.$this->pagenum.'</a> ';   }  }   //分页信息  public function showpage() {   $_page .= $this->first();   $_page .= $this->pageList();   $_page .= $this->last();   $_page .= $this->prev();   $_page .= $this->next();   return $_page;  } }?>

<?php $_page = new Page($_total,$_pagesize); //其中 $_total 是数据集的总条数,$_pagesize 是每页显示的数量.?>

<?php/** * page.class.php 分页类 * 日期：2015-04-05 * http://aowana.sinaapp.com */class page{  public static $url;  public static $page;  public static $total;  public static $size;  public static $number;  public static $max;   public static $action = array('previous', 'number', 'next');   public static function show($url, $page, $total, $size=10, $number=11)  {    self::$url = $url;    self::$page = $page;    self::$total = $total;    self::$size = $size;    self::$number = $number;    self::$max = ceil($total / $size);     $str = '';    foreach (self::$action as $name)      $str .= self::$name();    return $str;  }   public static function first()  {    if (self::$page > 2)    {      $url = self::url(1);      return "<li id=/"pbfirst/"><a href=/"{$url}/" title=/"首页/">首页</a></li>";    }  }   public static function previous()  {    if (self::$page > 1)    {      $url = self::url(self::$page - 1);      return "<li id=/"pbprevious/"><a href=/"{$url}/" title=/"上一页/">上一页</a></li>";    }  }   public static function number()  {    $str = '';    $f = self::$number % 2 ? (self::$number - 1) / 2 : self::$number / 2;    $s = self::$page - $f;    $e = self::$page + $f;     if (self::$page < ($f + 1))    {      $s = 1;      $e = self::$number;      $e = $e > self::$max ? self::$max : $e;    }     if (self::$page > (self::$max - $f))    {      $s = self::$max - self::$number;      $s = $s < 1 ? 1 : $s;      $e = self::$max;    }     for ($i=$s; $i<=$e; $i++)    {      $url = self::url($i);      if ($i == self::$page)        $str .= "<li><strong>{$i}</strong></li>";      else        $str .= "<li><a href=/"{$url}/" title=/"第{$i}页/">{$i}</a></li>";    }    return $str;  }   public static function next()  {    if (self::$page < self::$max)    {      $url = self::url(self::$page + 1);      return "<li id=/"pbnext/"><a href=/"{$url}/" title=/"下一页/">下一页</a></li>";    }  }   public static function end()  {    if ((self::$max - self::$page) > 1)    {      $url = self::url(self::$max);      return "<li id=/"pbend/"><a href=/"{$url}/" title=/"末页/">末页</a></li>";    }  }   public static function url($page)  {    return str_replace('{page}', $page, self::$url);  }}