PHP 通用分页类PagerBox及使用

nescafeboy1

<?php
//使用实例
//$totalNum = 101; //总数（数据记录总数）
//$page = isset ( $_GET ['page'] ) ? $_GET ['page'] : 1; //当前页数
//$perPage = 10; //每页显示记录
//$url = $_SERVER['PHP_SELF'];//
//$length = 5;//每页显示步长
//$class = 'pages';//分页器CSS样式
//
//$pagerBox = new PagerBox ( );
//
//echo $pagerBox->getPager ( $totalNum, $page, $url, $perPage, $length, $class, TRUE );
class PagerBox {
const PRE = '上一页';
const NEXT = '下一页';
/**
* 获取分页
*
* @param int $page 当前页
* @param int $totalNum    总页数
* @param int $perPage     每页显示记录数
* @param string $url      页面跳转URL
* @param int $length      页面步长值
* @param string $class    分页器样式
* @param bool $iscss      是否需要内置CSS
* @return html
*/
public function getPager($totalNum, $page, $url, $perPage, $length = '5', $class = 'pages', $default = FALSE) {
$pageNum = ceil ( $totalNum / $perPage );
$currentNum = ($page) ? $page : 1;
$html = '';
$html .= ($default) ? $this->getDefaultCss () : '';
$html .= '<div class="' . $class . '">';
$html .= $this->getPreHTML ( $page, $url );
$html .= $this->getPages ( $page, $url, $currentNum, $length, $pageNum );
$html .= $this->getNextHTML ( $page, $url, $pageNum );
$html .= '</div>';
return $html;
}
/**
* 获取上一页HTML
*
* @param int $page
* @param string $url
* @return html
*/
private function getPreHTML($page, $url) {
$html = '';
if (($page - 1) == 0) {
$html .= $this->getHTML ( self::PRE );
} else {
$html .= $this->getHTML ( self::PRE, TRUE, $this->getURL ( $url, ($page - 1) ) );
}
return $html;
}
/**
* 获取页HTML
*
* @param int $page
* @param string $url
* @param int $currentNum
* @param int $pageLength
* @param int $pageNum
* @return html
*/
private function getPages($page, $url, $currentNum, $length, $pageNum) {
$html = '';
$start = ceil ( $page / $length );
$start = ($start - 1) * $length + 1;
$end = $start + $length - 1;
$end = ($end > $pageNum) ? $pageNum : $end;
for($i = $start; $i <= $end; $i ++) {
if ($currentNum == $i) {
$html .= $this->getHTML ( $i );
continue;
}
$html .= $this->getHTML ( $i, TRUE, $this->getURL ( $url, $i ) );
}
return $html;
}
/**
* 获取下一页HTML
*
* @param int $page
* @param string $url
* @param int $pageNum
* @return html
*/
private function getNextHTML($page, $url, $pageNum) {
$html = '';
if (($page - $pageNum) == 0) {
$html .= $this->getHTML ( self::NEXT );
} else {
$html .= $this->getHTML ( self::NEXT, TRUE, $this->getURL ( $url, ($page + 1) ) );
}
return $html;
}
/**
* 获取分页HTML
*
* @param string $text
* @param bool $isUrl
* @param string $url
* @param string $class
* @return html
*/
private function getHTML($text, $isUrl = FALSE, $url = '', $class = '') {
if ($isUrl) {
return $this->getAHtml ( $text, $url );
}
return $this->getSpanHtml ( $text, $class );
}
/**
* 创建URL
*
* @param string $url
* @param int $page
* @return url
*/
private function getURL($url, $page) {
return $url . '?page=' . $page;
}
/**
* 创建span元素
*
* @param string $text
* @param string $class
* @return html
*/
private function getSpanHtml($text, $class = '') {
$class = ($class) ? 'class=' . $class : '';
return ' <span ' . $class . '>' . $text . '</span>';
}
/**
* 创建a元素
*
* @param string $text
* @param string $url
* @return html
*/
private function getAHtml($text, $url) {
return ' <a href="' . $url . '">' . $text . '</a>';
}
/**
* 获取默认CSS样式
*
* @return css
*/
private function getDefaultCss() {
$css = '<style type="text/css">';
$css .= '.pages {margin:15px auto 0 auto;padding-right:40px;text-align:left;}
.pages a, .pages span {display:inline-block;*display:inline;zoom:1;padding:0px 6px;height:21px;line-height:21px;font-size:12px;font-weight:100;background:#F5F8FF;overflow:hidden;}
.pages a {border:1px solid #D8E0ED;}
.pages span {border:1px solid #dddddd;background:#FFFFFF;color:#999999;}
a{text-decoration:none;color:#666666;}
a:hover{text-decoration:underline;color:#0657b2;}';
$css .= '</style>';
return $css;
}
}
?>