一个很好用的PHP分页类

jopen 9年前

class Page {        // 分页栏每页显示的页数        public $rollPage = 6;        // 页数跳转时要带的参数        public $parameter  ;        // 默认列表每页显示行数        public $listRows = 20;        // 起始行数        public $firstRow    ;        // 分页总页面数        protected $totalPages  ;        // 总行数        protected $totalRows  ;        // 当前页数        protected $nowPage    ;        // 分页的栏的总页数        protected $coolPages   ;        // 分页显示定制        protected $config  = array(            'redirect'=>false,            'header'=>'条记录',            'prev'=>'上一页',            'next'=>'下一页',            'first'=>'1',            'last'=>'最后一页',            'theme'=>' <div class="part1">%upPage% %first%  %prePage%  %linkPage%  %nextPage% %downPage%</div> <div class="part2">共  %totalPage% 页');        // 默认分页变量名        protected $varPage;            /**        +----------------------------------------------------------        * 架构函数        +----------------------------------------------------------        * @access public        +----------------------------------------------------------        * @param array $totalRows  总的记录数        * @param array $listRows  每页显示记录数        * @param array $parameter  分页跳转的参数        +----------------------------------------------------------        */        public function __construct($totalRows,$listRows='',$parameter='') {            $this->totalRows = $totalRows;            $this->parameter = $parameter;            $this->varPage = C('VAR_PAGE') ? C('VAR_PAGE') : 'p' ;            if(!empty($listRows)) {                $this->listRows = intval($listRows);            }            $this->totalPages = ceil($this->totalRows/$this->listRows);     //总页数            $this->coolPages  = ceil($this->totalPages/$this->rollPage);            //$_GET验证            $this->nowPage = intval($_GET[$this->varPage]);            $this->nowPage = $this->nowPage > 0 ? $this->nowPage : 1;                        if(!empty($this->totalPages) && $this->nowPage>$this->totalPages) {                $this->nowPage = $this->totalPages;            }            $this->firstRow = $this->listRows*($this->nowPage-1);        }            public function setConfig($name,$value) {            if(isset($this->config[$name])) {                $this->config[$name]    =   $value;            }        }            /**        +----------------------------------------------------------        * 分页显示输出        +----------------------------------------------------------        * @access public        +----------------------------------------------------------        */        public function show() {                        if(0 == $this->totalRows) return '';                        //处理参数            $p = $this->varPage;            $url  =  $_SERVER['REQUEST_URI'].(strpos($_SERVER['REQUEST_URI'],'?')?'':"?").$this->parameter;            $parse = parse_url($url);            if(isset($parse['query'])) {                parse_str($parse['query'],$params);                unset($params[$p]);                $url   =  $parse['path'].'?'.http_build_query($params);            }                        /* 分页逻辑  */                               //当总数小于显示的页码数            if ($this->totalPages <= $this->rollPage) {                $start = 1;                $end   = $this->totalPages;            }            else{                //                if  ($this->nowPage <= $this->rollPage - 1) {                    $start = 1;                    $end   = $this->rollPage;                                        $islast = true;                }                  else if ($this->nowPage > $this->totalPages - $this->rollPage + 1) {                    $start = $this->totalPages - ($this->rollPage - 1);                    $end   = $this->totalPages;                                        $isfirst = true;                }                else{                    //浮动数                    $size = floor($this->rollPage / 2);                                        $start = $this->nowPage - $size;                    $end   = $this->nowPage + $size;                                        $isfirst = true;                    $islast = true;                }            }                        //上下翻页字符串            $upRow   = $this->nowPage - 1;            $downRow = $this->nowPage + 1;                                    /* 拼装HTML */                        //< 1...     ...last >            if ($isfirst){                $theFirst = "<a class='firstPage' href='".$url."&".$p."=1' >".$this->config['first']."</a>";            }            if ($islast){                $theEnd = "<a class='lastPage' href='".$url."&".$p."=$this->totalPages' >".$this->config['last']."</a>";            }                        if ($upRow > 0){                $upPage = "<a class='upPage' href='".$url."&".$p."=$upRow'>".$this->config['prev']."</a>";            }                        if ($downRow <= $this->totalPages){                $downPage = "<a class='downPage' href='".$url."&".$p."=$downRow'>".$this->config['next']."</a>";            }                       if($start==3){                $linkPage .= "<a href='".$url."&".$p."=2'>2</a>";            }            if($start>=4){                $linkPage .= "<a href='".$url."&".$p."=2'>2</a> <span class='noEndClass'>...</span>";            }            //1 2 3 4 5            for($i=$start;$i<=$end;$i++){                if($i!=$this->nowPage){                    $linkPage .= " <a href='".$url."&".$p."=$i'> ".$i." </a>";                }else{                    $linkPage .= " <span class='current'>".$i."</span>";                }                if($i==$end){                    if($i<$this->totalRows){                        $linkPage .= " <span class='noEndClass'>...</span>";                    }                }            }                                $pageStr = str_replace(                array('%header%','%nowPage%','%totalRow%','%totalPage%','%upPage%','%first%','%prePage%','%linkPage%','%nextPage%','%downPage%','%end%'),                array($this->config['header'],$this->nowPage,$this->totalRows,$this->totalPages,$upPage,$theFirst,$prePage,$linkPage,$nextPage,$downPage,$theEnd),$this->config['theme']);                //显示模式  普通false 带跳转ture            if (!empty($this->config['redirect'])){                $html = $pageStr;                        }else{                //传递参数                if($this->totalPages > 1){                    $redirect = " 到第 <form method='get' action=''><input name=".$p." type='text' class='page_text' size='3' maxlength='3' value='" . $this->nowPage ."'/> 页 <input type='submit' class='page_btn' value='确定' />";                    if ($params){                        foreach($params as $k => $v){                            $string .= "<input type='hidden' name='" . $k . "' value='" . $v . "'/>";                        }                        $redirect = $redirect . $string . '</form></div>';                    }else{                        $redirect = $redirect . '</form></div>';                    }                }                //生成Html字符串                $html = $pageStr . $redirect;                   }              return $html;        }        }