一个简单且很好用的php分页类

2020-03-22 16:47:57

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来源：转载

供稿：网友

复制代码代码如下:
html' target='_blank'>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 %upPage% %first% %prePage% %linkPage% %nextPage% %downPage% /div div 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){
$theFirst = " a href='".$url."&".$p."=1' ".$this- config['first']." /a
}
if ($islast){
$theEnd = " a href='".$url."&".$p."=$this- totalPages' ".$this- config['last']." /a
}

if ($upRow 0){
$upPage = " a href='".$url."&".$p."=$upRow' ".$this- config['prev']." /a
}

if ($downRow = $this- totalPages){
$downPage = " a href='".$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."&".$p."=2' 2 /a span ... /span
}
//1 2 3 4 5
for($i=$start;$i =$end;$i++){
if($i!=$this- nowPage){
$linkPage .= " a href='".$url."&".$p."=$i' ".$i." /a
}else{
$linkPage .= " span ".$i." /span
}
if($i==$end){
if($i $this- totalRows){
$linkPage .= " span ... /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' size='3' maxlength='3' value='" . $this- nowPage ."'/ 页 input type='submit' value='确定' /
if ($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;
}}
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