<?php
/*** Page Class* 实现各种分页样式* @author yangsh*/
class Pager {/*** 数据总数* @var integer*/private $totalItems;/*** 每页显示数* @var integer*/private $pageSize = 20;/*** 页面显示的页码标号的数量* @var integer*/private $codeNum = 10;/*** 跳转链接* @var string(url)*/private $jumpLink = '';/*** 分页语言* @var string*/private $parseLang = array();/*** 装载页码的[Key]值* @var integer*/private $keyPage = 'pTag';/*** 构造函数* @param $totalItems 总的信息数量* @param $pageSize 每页显示的条数* @param $codeNum 页面显示的页码标号的数量（取偶数，非偶数时取加1）* @param $language 分页显示语言(en,zh,sign)* @param $keyPage 装载分页码标号的变量名称* @param $curtPage 初始页* @param $path 分页页面链接地址*/public function __construct($totalItems,$pageSize='',$language='',$codeNum='') {$this->setTotalItems($totalItems); //总的数据$this->setPageSize($pageSize); //每页显示数$this->setParseLang($language); //分页语言$this->setCodeNum($codeNum); //页面显示的页码标号的数量}/*** 装载默认分页HTML* @return string(html)*/public function parsePage() {$str = $this->getHtmlInfoPage(); //分页信息$str .= $this->getHtmlFirstPage(); //第一页$str .= $this->getHtmlLastPage(); //上一页$str .= $this->getHtmlPageList('',''); //页码$str .= $this->getHtmlNextPage(); //下一页$str .= $this->getHtmlFinallyPage(); //最后页$str .= $this->getHtmlSelectPage(); //下拉列表return $str;}/*** 设置分页语言* @param string $language 语言简写(en|zh|sign)* @return array*/private function setParseLang($language) {$aryLang = array('sign' => array('LAST_PAGE' => '<','NEXT_PAGE' => '>','FIRST_PAGE' => '<<','FINALLY_PAGE'=> '>>','INFO_PAGE' => '{CURRENT_PAGE}/{TOTAL_PAGE}','JUMP' => 'GO','PAGE' => '','FROM' => '','BUTTON' => '',),'cn' => array('LAST_PAGE' => '上一页','NEXT_PAGE' => '下一页','FIRST_PAGE' => '首页','FINALLY_PAGE'=> '尾页','INFO_PAGE' => '页次:<b>{CURRENT_PAGE}</b>/<b>{TOTAL_PAGE}</b>页 共<b>{TOTALITEM}</b>条记录 ','JUMP' => '转到','PAGE' => '页','FROM' => '第','BUTTON' => '跳转',),'en' => array('LAST_PAGE' => 'LAST','NEXT_PAGE' => 'NEXT','FIRST_PAGE' => 'FIRST','FINALLY_PAGE'=> 'FINAL','INFO_PAGE' => 'PAGE {CURRENT_PAGE} OF {TOTAL_PAGE}','JUMP' => 'GO','PAGE' => '','FROM' => '','BUTTON' => '',),);if(in_array($language, array_keys($aryLang))) {$this->parseLang = $aryLang[$language];} else {$this->parseLang = $aryLang['cn'];}}/*** 测试用* 得到一些分页相关信息* @return string*/public function getMessage() {$info = '<center><br><br><table border=1 bordercolor=red><tr><td>';$info .= '<font color=blue>';$info .= '<center>----------分页类------------</center>';$info .= '<b>初始设置：</b><br>共有信息数量 totalItems：' .$this->totalItems;$info .= '<br>设置每页显示数量 pageSize：' .$this->pageSize;$info .= '<br>设置每页显示的页码数 codeNum：' .$this->codeNum;$info .= '<br>设置装载页码的变量名 keyPage：' .$this->keyPage;$info .= '<br>设置跳转的URL jumpLink：' .$this->jumpLink;$info .= '<br><b>返回信息：</b>';$info .= '<br>得到的总页数 getPageNum()：' .$this->getPageNum();$info .= '<br>得到的当前页码 curtPage:' .$this->getCurtPage();$info .= '<br>得到的数据库检索条件 getSqlLimit()：' .$this->getSqlLimit();$info .= '<br><b>所有样式:</b><br>';$info .= 'getHtmlInfoPage(): '.$this->getHtmlInfoPage().'<br>getHtmlFirstPage():'.$this->getHtmlFirstPage().'<br>getHtmlLastPage():'.$this->getHtmlLastPage();$info .= '<br>getHtmlPageList(): '.$this->getHtmlPageList('[', ']').'<br>getHtmlNextPage():'.$this->getHtmlNextPage().'<br>getHtmlFinallyPage():'.$this->getHtmlFinallyPage();$info .= '<br>getHtmlSelectPage(): '.$this->getHtmlSelectPage();$info .= '</font>';$info .= '</td></tr></table><br><br></center>';print_r($info);}/*** 设置记录总数* @param int $total* @return void*/private function setTotalItems($total) {$this->totalItems = max(1, intval($total));}/*** 设置装载页码的[key],为空时表示生成静态页的分页* @param string $str(ex:page)* @return void*/public function setKeyPage($str) {if (!empty($str)) {$this->keyPage = $str;}}/*** 设置页面显示的页码标号的数量* @param integer $codeNum*/private function setCodeNum($codeNum) {if (!empty($codeNum)) {$this->codeNum = max(2, $codeNum+$codeNum%2); //该值须为偶数}}/*** 设置跳转路径(ex: /path/ex.php[htm])* @param string $fileName 跳转路径(默认跳转至当前页)* @return void*/public function setJumpLink($jumpLink) {$this->jumpLink = $jumpLink;}/*** 设置当前页* @param integer $curtPage 当前页码* @return void*/private function getCurtPage() {$curtPage = isset($_GET[$this->keyPage]) ? intval($_GET[$this->keyPage]) : 1;$curtPage = max(1, $curtPage);$curtPage = min($curtPage, $this->getPageNum());return $curtPage;}/*** 设置每页显示记录数* @param int $pageSize* @return void*/private function setPageSize($pageSize) {if(!empty($pageSize)) {$this->pageSize = max(1, intval($pageSize));}}/*** 返回跳转URL* @param int $pageVal 转至的页数* @return string(url)*/private function getJumpLink($pageVal) {$pageVal = max(0, intval($pageVal));if (preg_match('#(\.htm(l?))$#i', $this->jumpLink)) {$fary = explode('.', $this->jumpLink);$fary[count($fary)-2] .= $pageVal;return implode('.', $fary);}if (!empty($_SERVER['QUERY_STRING'])) {$qs = $_SERVER['QUERY_STRING']. '&';$qs = preg_replace('#'.$this->keyPage.'=[^\&]*\&?#i', '', $qs);} else {$qs = '';}return $this->jumpLink. '?' .$qs.$this->keyPage. '=' .$pageVal;}/*** 得到总页数* @return integer*/public function getPageNum() {return ceil($this->totalItems / $this->pageSize);}/*** 得到格式化的分页信息* @return string*/public function getHtmlInfoPage() {$str = $this->parseLang['INFO_PAGE'];$str = str_replace('{TOTAL_PAGE}', $this->getPageNum(), $str);$str = str_replace('{CURRENT_PAGE}', $this->getCurtPage(), $str);$str = str_replace('{TOTALITEM}' , $this->totalItems, $str);return $str;}/*** 得到格式化的页码标号* @param $trim 为分页标号之间间隔字符，默认为：空格* @return string*/public function getHtmlPageList($trim_l = ' ',$trim_r = ' ') {$str = '';//前$codeNum/2页for($i=($this->getCurtPage()-($this->codeNum/2)); $i<$this->getCurtPage(); $i++) {if ($i < 1) continue;$str .= $trim_l. '<a href="' .$this->getJumpLink($i). '">' .$i. '</a>' .$trim_r;}$str .= '<a class="selected active">' .$trim_l.$i.$trim_r. '</a>'; //当前页//后$codeNum/2-1页for ($i=($this->getCurtPage()+1); $i<($this->getCurtPage()+($this->codeNum/2)); $i++) {if($i > $this->getPageNum()) break;$str .= $trim_l. '<a href="' .$this->getJumpLink($i). '">' .$i. '</a>' .$trim_r;}return $str;}/*** 得到格式化的第一页* @return string(html)*/public function getHtmlFirstPage() {if($this->getCurtPage() <= 1) {//return ' ' .$this->parseLang['FIRST_PAGE']. ' ';return ' ';}return ' <a href="' . $this->getJumpLink(1). '">' .$this->parseLang['FIRST_PAGE'] . '</a> ';}/*** 得到格式化的最后页* @return string*/public function getHtmlFinallyPage() {if($this->getCurtPage() >= $this->getPageNum()) {//return ' ' .$this->parseLang['FINALLY_PAGE']. ' ';return ' ';}return ' <a href="' .$this->getJumpLink($this->getPageNum()). '">' .$this->parseLang['FINALLY_PAGE']. '</a> ';}/*** 得到格式化后的上一页* @return string*/public function getHtmlLastPage() {if ($this->getCurtPage() <= 1) {//return ' ' .$this->parseLang['LAST_PAGE']. ' ';return ' ';}return ' <a href="' .$this->getJumpLink($this->getCurtPage()-1). '">' .$this->parseLang['LAST_PAGE']. '</a> ';}/*** 得到格式化的下一页* @return string*/public function getHtmlNextPage() {if($this->getCurtPage() >= $this->getPageNum()) {//return ' ' .$this->parseLang['NEXT_PAGE']. ' ';return ' ';}return ' <a href="' .$this->getJumpLink($this->getCurtPage()+1). '">' .$this->parseLang['NEXT_PAGE']. '</a> ';}/*** 得到格式化的以下拉菜单显示* @return string*/public function getHtmlSelectPage($html='input') {$str = $this->parseLang['JUMP']. '<select name="' .$this->keyPage. '" ';$str.= 'onChange="javascript:window.location.href=this.options[selectedIndex].value">'.$this->parseLang['PAGE'];$s = '';for ($i=1; $i<=$this->getPageNum(); $i++) {$s = ($i == $this->getCurtPage()) ? ' selected' : '';$str .= '<option value="' .$this->getJumpLink($i). '"' .$s.'>' .$i. '</option>';}$str .= '</select>'.$this->parseLang['PAGE'];$str2 = '<label>'.$this->parseLang['FROM'].'<input id="_pTagInput_" type="text" value="'.$this->getCurtPage().'" />';$str2.= $this->parseLang['PAGE'].'</label>';$str2.= '<label><button οnclick="window.location.href=\''.$this->getJumpLink(0).'\'+document.getElementById(\'_pTagInput_\').value">';$str2.= $this->parseLang['BUTTON'].'</button></label>';return $html == 'select' ? $str : $str2;}/*** 返回用于外部调用的当前URL*/public function getArgv() {return '&' .$this->keyPage. '=' .$this->getCurtPage();}/*** 返回SQL语句(数据库查询)* @return string*/public function getSqlLimit() {return ' LIMIT ' .max(0, intval($this->getCurtPage() * $this->pageSize - $this->pageSize)). ',' .$this->pageSize;}/*** 返回分页计算参数 start* @return int*/public function getLimitStart() {return max(0, intval($this->getCurtPage() * $this->pageSize - $this->pageSize));}/*** 返回分页计算参数 offset* @return int*/public function getLimitOffset() {return $this->pageSize;}}
.meneame {PADDING-RIGHT: 3px; PADDING-LEFT: 3px; FONT-SIZE: 80%; PADDING-BOTTOM: 3px; MARGIN: 3px; COLOR: #ff6500; PADDING-TOP: 3px; TEXT-ALIGN: center; clear:both;}
.meneame A {BORDER-RIGHT: #ff9600 1px solid; PADDING-RIGHT: 7px; BACKGROUND-POSITION: 50% bottom; BORDER-TOP: #ff9600 1px solid; PADDING-LEFT: 7px; BACKGROUND-IMAGE: url(meneame.jpg); PADDING-BOTTOM: 5px; BORDER-LEFT: #ff9600 1px solid; COLOR: #ff6500; MARGIN-RIGHT: 3px; PADDING-TOP: 5px; BORDER-BOTTOM: #ff9600 1px solid; TEXT-DECORATION: none
}
.meneame A:hover {BORDER-RIGHT: #ff9600 1px solid; BORDER-TOP: #ff9600 1px solid; BACKGROUND-IMAGE: none; BORDER-LEFT: #ff9600 1px solid; COLOR: #ff6500; BORDER-BOTTOM: #ff9600 1px solid; BACKGROUND-COLOR: #ffc794
}
.meneame A:active {BORDER-RIGHT: #ff9600 1px solid; BORDER-TOP: #ff9600 1px solid; BACKGROUND-IMAGE: none; BORDER-LEFT: #ff9600 1px solid; COLOR: #ff6500; BORDER-BOTTOM: #ff9600 1px solid; BACKGROUND-COLOR: #ffc794
}
.meneame SPAN.current,.selected {BORDER-RIGHT: #ff6500 1px solid; PADDING-RIGHT: 7px; BORDER-TOP: #ff6500 1px solid; PADDING-LEFT: 7px; FONT-WEIGHT: bold; PADDING-BOTTOM: 5px; BORDER-LEFT: #ff6500 1px solid; COLOR: #ff6500; MARGIN-RIGHT: 3px; PADDING-TOP: 5px; BORDER-BOTTOM: #ff6500 1px solid; BACKGROUND-COLOR: #ffbe94
}
.meneame SPAN.disabled {BORDER-RIGHT: #ffe3c6 1px solid; PADDING-RIGHT: 7px; BORDER-TOP: #ffe3c6 1px solid; PADDING-LEFT: 7px; PADDING-BOTTOM: 5px; BORDER-LEFT: #ffe3c6 1px solid; COLOR: #ffe3c6; MARGIN-RIGHT: 3px; PADDING-TOP: 5px; BORDER-BOTTOM: #ffe3c6 1px solid
}
