一个简单且很好用的php分页类_php技巧

class Page {<BR>    // 分页栏每页显示的页数<BR>    public $rollPage = 6;<BR>    // 页数跳转时要带的参数<BR>    public $parameter  ;<BR>    // 默认列表每页显示行数<BR>    public $listRows = 20;<BR>    // 起始行数<BR>    public $firstRow ;<BR>    // 分页总页面数<BR>    protected $totalPages  ;<BR>    // 总行数<BR>    protected $totalRows  ;<BR>    // 当前页数<BR>    protected $nowPage    ;<BR>    // 分页的栏的总页数<BR>    protected $coolPages   ;<BR>    // 分页显示定制<BR>    protected $config  = array(<BR>     'redirect'=>false,<BR>     'header'=>'条记录',<BR>     'prev'=>'上一页',<BR>     'next'=>'下一页',<BR>     'first'=>'1',<BR>     'last'=>'最后一页',<BR>     'theme'=>' <div class="part1">%upPage% %first%  %prePage%  %linkPage%  %nextPage% %downPage%

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 rollPage) {
$start = 1;
$end = $this->totalPages;
}
else{
//
if ($this->nowPage 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
来4源gaodaimacom搞#代%码*网搞代gaodaima码 $upRow = $this->nowPage – 1;
$downRow = $this->nowPage + 1;

/* 拼装HTML */

//
if ($isfirst){
$theFirst = “”.$this->config[‘first’].””;
}
if ($islast){
$theEnd = “totalPages’ >”.$this->config[‘last’].””;
}

if ($upRow > 0){
$upPage = “”.$this->config[‘prev’].””;
}

if ($downRow totalPages){
$downPage = “”.$this->config[‘next’].””;
}

if($start==3){
$linkPage .= “2”;
}
if($start>=4){
$linkPage .= “2 …“;
}
//1 2 3 4 5
for($i=$start;$i<=$end;$i++){
if($i!=$this->nowPage){
$linkPage .= ” “.$i.” “;
}else{
$linkPage .= ” “.$i.”“;
}
if($i==$end){
if($itotalRows){
$linkPage .= ” …“;
}
}
}

$pageStr = str_replace(
array(‘%header%’,’%nowPage%’,’%totalRow%’,’%totalPage%’,’%upPage%’,’%first%’,’%prePage%’,’%linkPage%’,’%nextPage%’,’%downPage%’,’%end%’),
array($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){
$redirect = ” 到第 nowPage .”‘/> 页 “;
if ($params){
foreach($params as $k => $v){
$string .= “”;
}
$redirect = $redirect . $string . ‘