哪位帮忙看下这个分页类怎么调用,我说的是在查询语句下
网上找到一个比较好看的分页类,尽管作者已经说明怎么调用了,但是对我来说还是不太明白,主要是在sql语句里面怎么调用,下面是分页类代码:
<br /><?php<br />/**<br /> * 可以灵活定制的分页类<br /> * <br /> * 可以定制的选项包括,分页链接显示效果,当前页码链接按钮的样式,URL中获取分页值的名字,可以随意带自己的参数<br /> * <br /> * 使用方法:<br /> * 1、初始化类的时候需要传入参数,类型为数组。<br /> * array(<br /> * (必填)'totalRows'=>'100', 需要显示的数据的总条数;<br /> * (必填)'pageSize'=>'2', 每页需要显示的代码数量;<br /> * (必填)'currentPage'=>$_GET['p'], 当前页码,默认可以通过$_GET['p']获取,其中名字p可以定制<br /> * (必填)'baseUrl'=>'/welcome?id=3',你当前页面的链接地址,比如为http://www.xxx.com/test.php(或者/test.php),如果后面带有参数则可以为http://www.xxx.com/test?id=8<br /> * (选填,默认为3)'offset'=>'3', 当前页码的左右偏移量,比如当前页码为5,则在5的左右各显示几个数字链接,默认为3个,则效果为2,3,4,5,6,7,8<br /> * (选填,默认为p)'pageString'=>'p',通过$_GET['p']获取当前页码时候的名字,默认为p<br /> * (选填,默认为here)'className'=>'here',当前页码链接按钮的样式,默认样式名为here,所以你可以这样写css样式.here{background:#FF4500;} )<br /> * <br /> * 2、可以使用的方法。<br /> * A、初始化类后,需要调用pagination([$style = '1'][,$output=TRUE])方法产生分页链接<br /> * 关于参数的说明:<br /> * @param $style (默认为 1,可不填写) :获取链接全部组件,即 首页+上一页+数字链接+下一页+尾页<br /> * @param $style == 2 :仅获取数字链接<br /> * @param $style == 3 :仅获取上一页+下一页<br /> * @param $style == 4 :仅获取上一页+数字链接+下一页,(不包含首尾页)<br /> * <br /> * @param $output (默认为TRUE),返回分页链接<br /> * @param $output 为FALSE时,直接输出分页链接<br /> * <br /> * B、getCurrentPage()获取当前页码,经过真伪判断后的,防止用户自行输入错误,比如http://www.xxx.com/test?p=-100;此时通过此方法获取当前页码为1<br /> * <br /> * C、pageAmount()获取总的页码数量<br /> * <br /> * @author 星空幻颖<br /> * @link http://blog.sina.com.cn/yanyinghq<br /> *<br /> */<br />class Page<br />{<br /> private $pageSize; //您的网站每一页显示的列表条数<br /> private $totalRows; //通过数据库查询返回的总的记录条数<br /> private $url; //基准URL<br /> private $pageAmount; //页码的总数<br /> private $currentPage; //当前的页码<br /> private $offset = 4; //页码偏移量<br /> private $pageString = 'p'; //页码在URL中的名字<br /> private $classHere = 'class="here"'; //当前页链接的class样式类名,默认为here<br /> <br /> //初始化当前页码,记录总条数,每页多少条记录<br /> public function __construct($param)<br /> {<br /> $this->pageSize = $param['pageSize'];<br /> $this->totalRows = $param['totalRows'];<br /> $this->url = $param['baseUrl'];<br /> $this->offset = !empty($param['offset'])?$param['offset']:$this->offset;<br /> $this->pageString = !empty($param['pageString'])?$param['pageString']:$this->pageString;<br /> $this->classHere = !empty($param['className'])?$param['className']:$this->classHere;<br /> $this->currentPage = (int)$param['currentPage'];<br /> }<br /> <br /> /**<br /> * 创建分页链接<br /> * <br /> * @param $style 默认为 1 :获取链接全部组件<br /> * @param $style == 2 :仅获取数字链接<br /> * @param $style == 3 :仅获取上一页,下一页<br /> * @param $style == 4 :仅获取上一页、下一页、数字链接,不包含首尾页<br /> * <br /> * @param $output 为TRUE时,返回分页链接<br /> * @param $output 为FALSE时,直接输出分页链接<br /> * <br /> */<br /> public function pagination($style = '1',$output=TRUE)<br /> {<br /> $this->baseUrl();<br /> $this->pageAmount();<br /> $this->currentPage();<br /> <br /> //获取全部组件<br /> if($style == '1')<br /> {<br /> $page = $this->indexPage().$this->prevPage().$this->pageNumber().$this->nextPage().$this->endPage();<br /> }<br /> else if($style == '2')<br /> {<br /> //获取纯数字链接<br /> $page = $this->pageNumber();<br /> }<br /> else if($style == '3')<br /> {<br /> //只获取上一页下一页<br /> $page = $this->prevPage().$this->nextPage();<br /> }<br /> else if($style =='4')<br /> {<br /> //上一页、下一页、数字链接<br /> $page = $this->prevPage().$this->pageNumber().$this->nextPage();<br /> }<br /> <br /> if($output)<br /> {<br /> return $page;<br /> }<br /> else<br /> {<br /> echo $page;<br /> }<br /> }<br /> <br /> /**<br /> * 获取当前页码<br /> * <br /> * @return 当前页码,经过真伪判断的<br /> */<br /> public function getCurrentPage()<br /> {<br /> $this->pageAmount();<br /> $this->currentPage();<br /> return $this->currentPage;<br /> }<br /> <br /> /**<br /> * 计算出所有的页数<br /> * <br /> * 可以类外面直接调用此方法返回页码总数<br /> * <br /> * @return 页码的总数<br /> */<br /> public function pageAmount()<br /> {<br /> $this->pageAmount = ceil( $this->totalRows / $this->pageSize);<br /> if($this->pageAmount <= 0)<br /> {<br /> $this->pageAmount = '1';<br /> }<br /> return $this->pageAmount;<br /> }<br /> <br /> /**<br /> * 判断基准链接是否携带参数<br /> * <br /> * 基准链接为用户提交当前页码链接<br /> * <br /> * 如果携带参数,则在链接之后加&p=<br /> * <br /> * 如果不携带参数,则直接加?p=<br /> */<br /> private function baseUrl()<br /> {<br /> if(preg_match('/\?/', $this->url))<br /> {<br /> $this->url = $this->url.'&'.$this->pageString.'=';<br /> }<br /> else<br /> {<br /> $this->url = $this->url.'?'.$this->pageString.'=';<br /> }<br /> }<br /> <br /> /**<br /> * 验证当前页码的真伪性<br /> * <br /> * 如果当前页码小于1或者没有,则默认当前页码为1<br /> * <br /> * 如果当前页码大于页码总数,则默认当前页码为页码总数<br /> * <br /> */<br /> private function currentPage()<br /> {<br /> if($this->currentPage < 1 || !$this->currentPage)<br /> {<br /> $this->currentPage = 1;<br /> }<br /> else if(($this->currentPage > $this->pageAmount))<br /> {<br /> $this->currentPage = $this->pageAmount;<br /> }<br /> }<br /> <br /> /**<br /> * 首页链接<br /> */<br /> private function indexPage()<br /> {<br /> if($this->currentPage == 1) return;<br /> return '<a href="'.$this->url.'1">首页</a>';<br /> }<br /> <br /> /**<br /> * 尾页链接<br /> */<br /> private function endPage()<br /> {<br /> if($this->currentPage == $this->pageAmount) return;<br /> return '<a href="'.$this->url.$this->pageAmount.'">尾页</a>';<br /> }<br /> <br /> /**<br /> * 上一页<br /> */<br /> private function prevPage()<br /> {<br /> if($this->currentPage == 1) return;<br /> return '<a href="'.$this->url.( $this->currentPage - 1 ).'">上一页</a>';<br /> }<br /> <br /> /**<br /> * 下一页<br /> */<br /> private function nextPage()<br /> {<br /> if($this->currentPage == $this->pageAmount) return;<br /> return '<a href="'.$this->url.( $this->currentPage + 1 ).'">下一页</a>';<br /> }<br /> <br /> /**<br /> * 中间页码的链接<br /> * <br /> */<br /> private function pageNumber()<br /> {<br /> $left ="";<br /> $right = "";<br /> <br /> //如果总记录的条数“大于”所有链接的数量时候<br /> if($this->pageAmount > ($this->offset * 2 + 1))<br /> {<br /> //当前页码距离首页的距离<br /> $leftNum = $this->currentPage - 1;<br /> <br /> //当前页码距离尾页的距离<br /> $rightNum = $this->pageAmount - $this->currentPage;<br /> <br /> //当当前页码距离首页距离不足偏移量offset时候,在右边补齐缺少的小方块<br /> if( $leftNum < $this->offset)<br /> {<br /> //左边的链接<br /> for($i = $leftNum; $i >= 1 ; $i--)<br /> {<br /> $left .= '<a href="'.$this->url.( $this->currentPage - $i ).'">'.( $this->currentPage - $i ).'</a>';<br /> }<br /> <br /> //右边的链接<br /> for($j = 1; $j <= ($this->offset * 2 - $leftNum); $j++)<br /> {<br /> $right .= '<a href="'.$this->url.( $this->currentPage + $j ).'">'.( $this->currentPage + $j ).'</a>';<br /> }<br /> }<br /> else if($rightNum < $this->offset)<br /> {<br /> //左边的链接<br /> for($i = ($this->offset * 2 - $rightNum); $i >= 1 ; $i--)<br /> {<br /> $left .= '<a href="'.$this->url.( $this->currentPage - $i ).'">'.( $this->currentPage - $i ).'</a>';<br /> }<br /> <br /> //右边的链接<br /> for($j = 1; $j <= $rightNum; $j++)<br /> {<br /> $right .= '<a href="'.$this->url.( $this->currentPage + $j ).'">'.( $this->currentPage + $j ).'</a>';<br /> }<br /> }<br /> else<br /> {<br /> //当前链接左边的链接<br /> for($i = $this->offset; $i >= 1 ; $i--)<br /> {<br /> $left .= '<a href="'.$this->url.( $this->currentPage - $i ).'">'.( $this->currentPage - $i ).'</a>'; <br /> }<br /> <br /> //当前链接右边的链接<br /> for($j = 1; $j <= $this->offset; $j++)<br /> {<br /> $right .= '<a href="'.$this->url.( $this->currentPage + $j ).'">'.( $this->currentPage + $j ).'</a>';<br /> }<br /> }<br /> <br /> return $left.'<a href="'.$this->url.$this->currentPage.'" class="here">'.$this->currentPage.'</a>'.$right;<br /> }<br /> else<br /> {<br /> $allLink='';<br /> //当页码总数小于需要显示的链接数量时候,则全部显示出来<br /> for($j = 1; $j <= $this->pageAmount; $j++)<br /> {<br /> $allLink.='<a href="'.$this->url.$j.'" '.($j == $this->currentPage?$this->classHere:'').'>'.$j.'</a>';<br /> }<br /> return $allLink;<br /> }<br /> }<br /> <br />}<br />
<br /><?php<br />class Page { <br />private $total; //数据表中总记录数<br />private $listRows; //每页显示行数<br />private $limit;<br />private $uri; <br />private $pageNum; //页数<br />private $config=array('header'=>"个记录", "prev"=>"上一页", "next"=>"下一页", "first"=>"首 页", "last"=>"尾 页"); <br />private $listNum=8;<br />/* $total 11. * $listRows 12. */ <br />public function __construct($total, $listRows=10, $pa=""){ <br /> $this->total=$total; <br /> $this->listRows=$listRows; <br /> $this->uri=$this->getUri($pa); <br /> $this->page=!empty($_GET["page"]) ? $_GET["page"] : 1; <br /> $this->pageNum=ceil($this->total/$this->listRows); <br /> $this->limit=$this->setLimit(); <br /> } <br />private function setLimit(){ <br /> return "Limit ".($this->page-1)*$this->listRows.", {$this->listRows}"; <br /> } <br />private function getUri($pa){ <br /> $url=$_SERVER["REQUEST_URI"].(strpos($_SERVER["REQUEST_URI"], '?')?'':"?").$pa; <br /> $parse=parse_url($url); <br /> if(isset($parse["query"])){ <br /> parse_str($parse['query'],$params); <br /> unset($params["page"]); <br /> $url=$parse['path'].'?'.http_build_query($params); <br /> } <br /> return $url; <br /> } <br />public function __get($args){ <br /> if($args=="limit") <br /> return $this->limit; <br /> else <br /> return null; <br /> } <br />private function start(){ <br /> if($this->total==0) <br /> return 0; <br /> else <br /> return ($this->page-1)*$this->listRows+1; <br /> } <br />private function end(){ <br /> return min($this->page*$this->listRows,$this->total);<br /> } <br />private function first(){ <br /> if($this->page==1) <br /> $html.=''; <br /> else <br /> $html.="<li><a href='{$this->uri}&page=1'>{$this->config["first"]}</a></li>"; <br /> return $html; <br /> } <br />private function prev(){<br /> if($this->page==1)<br /> $html.='';<br /> else <br /> $html.="<li><a href='{$this->uri}&page=".($this->page-1)."'>{$this->config["prev"]}</a></li>"; <br /> return $html;<br /> } <br />private function pageList(){<br /> $linkPage=""; <br /> $inum=floor($this->listNum/2); <br /> for($i=$inum; $i>=1; $i--){ <br /> $page=$this->page-$i;<br /> if($page<1)<br /> continue; <br /> $linkPage.="<li><a href='{$this->uri}&page={$page}'>{$page}</a></li>";<br /> } <br /> $linkPage.="<li><a href='#' class='here'>{$this->page}</a></li>";<br />for($i=1; $i<=$inum; $i++){ <br />$page=$this->page+$i; <br />if($page<=$this->pageNum) <br />$linkPage.="<li><a href='{$this->uri}&page={$page}'>{$page}</a></li>";<br />else <br />break; <br />}<br />return $linkPage;<br />}<br />private function next(){ <br />if($this->page==$this->pageNum)<br />$html.=''; <br />else <br />$html.="<li><a href='{$this->uri}&page=".($this->page+1)."'>{$this->config["next"]}</a></li>"; <br />return $html;<br />}<br />private function last(){ <br />if($this->page==$this->pageNum)<br />$html.='';<br />else<br />$html.="<li><a href='{$this->uri}&page=".($this->pageNum)."'>{$this->config["last"]}</a></li>";<br />return $html;<br />}<br />/*private function goPage(){<br />return ' <input type="text" class="inputall input50" onkeydown="javascript:if(event.keyCode==13){var page=(this.value>'.$this->pageNum.')?'.$this->pageNum.':this.value;location=\''.$this->uri.'&page=\'+page+\'\'}" value="'.$this->page.'" style="width:25px"> <input type="button" value="GO" style="width:45px;height:30;line-height:30px;border-radius:4px;" onclick="javascript:var page=(this.previousSibling.value>'.$this->pageNum.')?'.$this->pageNum.':this.previousSibling.value;location=\''.$this->uri.'&page=\'+page+\'\'"> ';<br />}*/<br />private function goPage(){<br />return ' <input type="text" class="inputall input50" onkeydown="javascript:if(event.keyCode==13){var page=(this.value>'.$this->pageNum.')?'.$this->pageNum.':this.value;location=\''.$this->uri.'&page=\'+page+\'\'}" value="'.$this->page.'" style="width:25px"><input type="button" value="GO" style="width:45px;height:30;line-height:30px;border-radius:4px;" onclick="javascript:var page=(this.previousSibling.value>'.$this->pageNum.')?'.$this->pageNum.':this.previousSibling.value;location=\''.$this->uri.'&page=\'+page+\'\'"> ';<br />}<br />function fpage($display=array(0,1,2,3,4,5,6,7,8)){<br />$html[0]="共有<b>{$this->total}</b>{$this->config["header"]} ";<br />$html[1]=" 每页显示<b>".($this->end()-$this->start()+1)."</b>条,本页<b>{$this->start()}-{$this->end()}</b>条 "; <br />$html[2]=" <b>{$this->page}/{$this->pageNum}</b>页 ";<br />$html[3]=$this->first();<br />$html[4]=$this->prev();<br />$html[5]=$this->pageList();<br />$html[6]=$this->next();<br />$html[7]=$this->last();<br />$html[8]=$this->goPage();<br />$fpage='';<br />foreach($display as $index){ <br />$fpage.=$html[$index];<br />} <br />return $fpage;<br />} <br />}<br />?><br />