<?php /* * PHP分页类 * @package Page * @Created 2013-03-27 * @Modify 2013-03-27 * @link http://www.60ie.net * Example: $myPage=new Pager(1300,intval($CurrentPage)); $pageStr= $myPage->GetPagerContent(); echo $pageStr; */ class Pager { private $pageSize = 10; private $pageIndex; private $totalNum; private $totalPagesCount; private $pageUrl; private static $_instance; public function __construct($p_totalNum, $p_pageIndex, $p_pageSize = 10,$p_initNum=3,$p_initMaxNum=5) { if (! isset ( $p_totalNum ) || !isset($p_pageIndex)) { die ( "pager initial error" ); } $this->totalNum = $p_totalNum; $this->pageIndex = $p_pageIndex; $this->pageSize = $p_pageSize; $this->initNum=$p_initNum; $this->initMaxNum=$p_initMaxNum; $this->totalPagesCount= ceil($p_totalNum / $p_pageSize); $this->pageUrl=$this->_getPageUrl(); $this->_initPagerLegal(); } /** * 获取去除page部分的当前URL字符串 * * @return String URL字符串 */ private function _getPageUrl() { $CurrentUrl = $_SERVER["REQUEST_URI"]; $arrUrl = parse_url($CurrentUrl); $urlQuery = $arrUrl["query"]; if($urlQuery){ $urlQuery = ereg_replace("(^|&)page=" . $this->pageIndex, "", $urlQuery); $CurrentUrl = str_replace($arrUrl["query"], $urlQuery, $CurrentUrl); if($urlQuery){ $CurrentUrl.="&page"; } else $CurrentUrl.="page"; } else { $CurrentUrl.="?page"; } return $CurrentUrl; } /* *设置页面参数合法性 *@return void */ private function _initPagerLegal() { if((!is_numeric($this->pageIndex)) || $this->pageIndex<1) { $this->pageIndex=1; }elseif($this->pageIndex > $this->totalPagesCount) { $this->pageIndex=$this->totalPagesCount; } } //$this->pageUrl}={$i} //{$this->CurrentUrl}={$this->TotalPages} public function GetPagerContent() { $str = "<div class=/"Pagination/">"; //首页 上一页 if($this->pageIndex==1) { $str .="<a href='javascript:void(0)' class='tips' title='首页'>首页</a> "."/n"; $str .="<a href='javascript:void(0)' class='tips' title='上一页'>上一页</a> "."/n"."/n"; }else { $str .="<a href='{$this->pageUrl}=1' class='tips' title='首页'>首页</a> "."/n"; $str .="<a href='{$this->pageUrl}=".($this->pageIndex-1)."' class='tips' title='上一页'>上一页</a> "."/n"."/n"; } /* 除首末后 页面分页逻辑 */ //10页（含）以下 $currnt=""; if($this->totalPagesCount<=10) { for($i=1;$i<=$this->totalPagesCount;$i++) { if($i==$this->pageIndex) { $currnt=" class='current'";} else { $currnt=""; } $str .="<a href='{$this->pageUrl}={$i} ' {$currnt}>$i</a>"."/n" ; } }else //10页以上 { if($this->pageIndex<3) //当前页小于3 { for($i=1;$i<=3;$i++) { if($i==$this->pageIndex) { $currnt=" class='current'";} else { $currnt=""; } $str .="<a href='{$this->pageUrl}={$i} ' {$currnt}>$i</a>"."/n" ; } $str.="<span class=/"dot/">……</span>"."/n"; for($i=$this->totalPagesCount-3+1;$i<=$this->totalPagesCount;$i++)//功能1 { $str .="<a href='{$this->pageUrl}={$i}' >$i</a>"."/n" ; } }elseif($this->pageIndex<=5) // 5 >= 当前页 >= 3 { for($i=1;$i<=($this->pageIndex+1);$i++) { if($i==$this->pageIndex) { $currnt=" class='current'";} else { $currnt=""; } $str .="<a href='{$this->pageUrl}={$i} ' {$currnt}>$i</a>"."/n" ; } $str.="<span class=/"dot/">……</span>"."/n"; for($i=$this->totalPagesCount-3+1;$i<=$this->totalPagesCount;$i++)//功能1 { $str .="<a href='{$this->pageUrl}={$i}' >$i</a>"."/n" ; } }elseif(5<$this->pageIndex && $this->pageIndex<=$this->totalPagesCount-5 ) //当前页大于5，同时小于总页数-5 { for($i=1;$i<=3;$i++) { $str .="<a href='{$this->pageUrl}={$i}' >$i</a>"."/n" ; } $str.="<span class=/"dot/">……</span>"; for($i=$this->pageIndex-1 ;$i<=$this->pageIndex+1 && $i<=$this->totalPagesCount-5+1;$i++) { if($i==$this->pageIndex) { $currnt=" class='current'";} else { $currnt=""; } $str .="<a href='{$this->pageUrl}={$i} ' {$currnt}>$i</a>"."/n" ; } $str.="<span class=/"dot/">……</span>"; for($i=$this->totalPagesCount-3+1;$i<=$this->totalPagesCount;$i++) { $str .="<a href='{$this->pageUrl}={$i}' >$i</a>"."/n" ; } }else { for($i=1;$i<=3;$i++) { $str .="<a href='{$this->pageUrl}={$i}' >$i</a>"."/n" ; } $str.="<span class=/"dot/">……</span>"."/n"; for($i=$this->totalPagesCount-5;$i<=$this->totalPagesCount;$i++)//功能1 { if($i==$this->pageIndex) { $currnt=" class='current'";} else { $currnt=""; } $str .="<a href='{$this->pageUrl}={$i} ' {$currnt}>$i</a>"."/n" ; } } } /* 除首末后 页面分页逻辑结束 */ //下一页 末页 if($this->pageIndex==$this->totalPagesCount) { $str .="/n"."<a href='javascript:void(0)' class='tips' title='下一页'>下一页</a>"."/n" ; $str .="<a href='javascript:void(0)' class='tips' title='末页'>末页</a>"."/n"; }else { $str .="/n"."<a href='{$this->pageUrl}=".($this->pageIndex+1)."' class='tips' title='下一页'>下一页</a> "."/n"; $str .="<a href='{$this->pageUrl}={$this->totalPagesCount}' class='tips' title='末页'>末页</a> "."/n" ; } $str .= "</div>"; return $str; } /** * 获得实例 * @return */ // static public function getInstance() { // if (is_null ( self::$_instance )) { // self::$_instance = new pager (); // } // return self::$_instance; // } } ?> |
