PHP实现对数组分页处理实例详解

<?php
class paginationarray{
 public $pagearray=array(); //数组
 public $pagesize=10; //每页显示记录数
 public $current= 1; //当前页
 private $total=0; //总页数
 private $prev=0; //上一页
 private $next=0; //下一页
 public $argumetsother='';//设置参数
 function __construct($array=array(),$pagesize=10,$current=1){
 $this->pagearray=$array;
 $this->pagesize=$pagesize;
 $this->current=$current; 
 }
 /*通过数组进行初始化
 * 
 * 数组为关联数组,参数索引为pagearray,pagesize,current
 * 
 */
 function setarguments($arr){
 if (is_array($arr)){
  $this->pagearray=$arr['pagearray'];
  $this->pagesize=$arr['pagesize'];
  $this->current=$arr['current'];
 }else{
  return ;
 }
 }
 //返回链接
 function page(){
 $_return=array();
 /*calculator*/
 $this->total=ceil(count($this->pagearray)/$this->pagesize);
 $this->prev=(($this->current-1)<= 0 ? "1":($this->current-1));
 $this->next=(($this->current+1)>=$this->total ? $this->total:$this->current+1);
 $current=($this->current>($this->total)?($this->total):$this->current);
 $start=($this->current-1)*$this->pagesize;
 $arrleng=count($this->pagearray);
 for($i=$start;$i<($start+$this->pagesize);$i++){
  if($i >= $arrleng)break;
  array_push($_return,$this->pagearray[$i]);
 }
 $pagearray["source"]=$_return;
 $pagearray["links"]=$this->linkstyle(2);
 return $pagearray;
 }
 //链接的样式
 private function linkstyle($number=1){
 $linkstyle='';
 switch ($number){
  case 1:
  $linkstyle="<a href=\"?page=1\">first</a> <a href=\"?page={$this->prev}\">prev</a> <a href=\"?page={$this->next}\">next</a> <a href=\"?page={$this->total}\">end</a>";
  break;
  case 2:
  $linkstyle="<a href=\"?page=1&{$this->argumetsother}\">首页</a> <a href=\"?page={$this->prev}&{$this->argumetsother}\">上一页</a> <a href=\"?page={$this->next}&{$this->argumetsother}\">下一页</a> <a href=\"?page={$this->total}&{$this->argumetsother}\">尾页</a>";
  break;
 }
 return $linkstyle;
 }
}
//调用的实例
/*
header('content-type: text/html;charset=utf-8');
$array=array("1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20");
$page= isset($_get['page'])? $_get['page'] : 1 ;
$arraypage = new paginationarray($array,"5",$page);
$r = $arraypage->page();
foreach($r["source"] as $s){
 echo $s.'<br />';
}
echo $r["links"];
*/
?>