'上页', "next"=>'下页', "first"=>'', "last"=>'');//在分页信息中显示内容，可以自己设置
public $listNum =10; //默认分页列表显示的个数
/**
* 构造方法，可以设置分页类的属性
* @param int $total 计算分页的总记录数
* * @param int $page 第几页
* @param int $listRows 可选的，默认每页需要显示的记录数
* @param string $pa 可选的，为向目标页面传递参数
*/
public function __construct($total,$page, $listRows=25, $pa=""){
$this->total = $total;
$this->listRows = $listRows;
$this->uri = $this->getUri($pa);
$page = !empty($page) ? $page : 1;
if($total > 0) {
if(preg_match('/\D/', $page) ){
$this->page = 1;
}else{
$this->page = $page;
}
}else{
$this->page = 0;
}
$this->pageNum = ceil($this->total/$this->listRows);
$this->limit = $this->setLimit();
}
/**
* 用于设置显示分页的信息，可以连贯操作
* @param string $param 是数组config的下标
* @param string $value 用于设置config下标对应的元素值
* @return object 返回本对象自己$this
*/
function set($param, $value){
if(array_key_exists($param, $this->config)){
$this->config[$param]=$value;
}
return $this;
}
public function setLimit(){
if($this->page > 0)
return ($this->page-1)*$this->listRows.", {$this->listRows}";
else
return 0;
}
public function getUri($param){
$url = $_SERVER['REQUEST_URI'] . (strpos($_SERVER['REQUEST_URI'], "?") ? "" : "?") . $param;
$parse = parse_url($url);
if (isset($parse["query"])) {
parse_str($parse["query"], $params);
unset($params["page"]);
$url = $parse["path"] . "?" . http_build_query($params);
return $url;
} else {
return $url;
}
}
public function __get($args){
if($args=="limit")
return $this->limit;
else
return null;
}
public function start(){
if($this->total==0)
return 0;
else
return ($this->page-1)*$this->listRows+1;
}
public function end(){
return min($this->page*$this->listRows,$this->total);
}
public function firstprev(){
if($this->page > 1) {
$str ="{$this->config["first"]}";
$str .="{$this->config["prev"]}";
return $str;
}else{
$str ="{$this->config["first"]}";
$str .="{$this->config["prev"]}";
return $str;
}
}
public function pageList(){
$linkPage = "";
$inum = 2;
for($i=$inum; $i>=1; $i--){
$page = $this->page-$i;
if($page>=1)
$linkPage .="{$page}";
}
if($this->pageNum > 1)
$linkPage .=''.$this->page.'';
for($i=1; $i<=$inum; $i++){
$page = $this->page+$i;
if($page<=$this->pageNum)
$linkPage .= "{$page}";
else
break;
}
return $linkPage;
}
public function nextlast(){
if($this->page != $this->pageNum) {
$str ="{$this->config["next"]}";
$str .="{$this->config["last"]}";
return $str;
}else{
$str ="{$this->config["next"]}";
$str .="{$this->config["last"]}";
return $str;
}
}
/**
* 按指定的格式输出分页
*/
function fpage(){
if($this->total <= $this->listRows){
return;
}
$fpage = '';
return $fpage;
}
}