以下为引用的内容: <?php /** * PHP通用分页类 * author phperz.com
* $page_size:每页显示记录数 * $rs_total :总记录数
* 语法: * new pages($page_size,$rs_total) * 可用返回值: * $offset (limit便移量: linit 0,20) * $page_html (分页连接: 首页 上一页 下一页 末页) */
class pages{ var $page_size; var $rs_total; var $page_total; var $page; var $offset; var $url; var $pre_page = "page"; var $page_info; var $page_html;
function __construct($page_size = 20,$rs_total){ $this->page_size = $page_size; $this->rs_total = $rs_total; $this->page_total = ceil($rs_total/$page_size); $this->page = $this->get_page(); $this->offset = $this->get_offset(); $this->url = $this->get_url(); $this->page_info = $this->page_info(); $this->page_html = $this->page_html($this->page_info); } //获取当前页码 private function get_page(){ $page = isset($_GET[$this->pre_page])?$this->f_GET($this->pre_page):1; $page = $page<1?1:$page; $page = $page>$this->page_total?$this->page_total:$page; return $page; } //获取当前页的记录偏移量 private function get_offset(){ $offset = " limit ".($this->page - 1) * $this->page_size.",".$this->page_size; return $offset; } //生成翻页html代码 public function page_html($page_info){ if (!empty($page_info['first'])){ if ($this->page=="" || $this->page==1){ $page_html = "<span class='page_first'>".$page_info['first']."</span>"; } else { $page_html = "<span class='page_first'><a href='?".$this->url['first']."'>".$page_info['first']."</a></span>"; } }//首页 if (!empty($page_info['pro'])){ if ($this->page=="" || $this->page==1){ $page_html .= "<span class='page_pro'>".$page_info['pro']."</span>"; } else{ $page_html .= "<span class='page_pro'><a href='?".$this->url['pro']."'>".$page_info['pro']."</a></span>"; } }//上一页 if (!empty($page_info['next'])){ if ($this->page >= $this->page_total){ $page_html .= "<span class='page_next'>".$page_info['next']."</span>"; } else{ $page_html .= "<span class='page_next'><a href='?".$this->url['next']."'>".$page_info['next']."</a></span>"; } }//下一页 if (!empty($page_info['last'])){ if ($this->page >= $this->page_total){ $page_html .= "<span class='page_last'>".$page_info['last']."</span>"; } else{ $page_html .= "<span class='page_last'><a href='?".$this->url['last']."'>".$page_info['last']."</a></span>"; } }//最后一页 if (!empty($page_info['t_page'])){ $page_html .= "<span class='t_page'>".str_replace("%i%",$this->page_total,$page_info['t_page'])."</span>"; } if (!empty($page_info['page'])){ $page_html .= "<span class='now_page'>".str_replace("%i%",$this->page,$page_info['page'])."</span>"; } if (!empty($page_info['r_total'])){ $page_html .= "<span class='r_page'>".str_replace("%i%",$this->rs_total,$page_info['r_total'])."</span>"; } return $page_html; } //获取当前 URL private function get_url(){ $url_str = $_GET; $query_string = array(); foreach($url_str as $key=>$value){ if ($key == $this->pre_page){ continue; } $str .= $key."=".$value."&"; }//end for $next_tmp = $this->page + 1; $pro_tmp = $this->page - 1; $last = $str.$this->pre_page."=".$this->page_total; $next = $str.$this->pre_page."=".$next_tmp; $pro = $str.$this->pre_page."=".$pro_tmp; $first = $str.$this->pre_page."=1"; $query_string = array("pro"=>$pro,"next"=>$next,"last"=>$last,"first"=>$first); return $query_string; } private function page_info(){ $arr = array( "first" => "首页", "next" => "下一页", "pro" => "上一页", "last" => "末页", "t_page"=> "共 %i% 页", "page" => "当前第 %i% 页", "r_total"=> "共 %i% 条" ); return $arr; }//page_info() //过滤函数 private function f_Get($GET){ $GET = $_GET[$GET]; return preg_replace("/[^0-9]+/i","",$GET); } } ?>
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