$array=array("1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20");//規定要分頁的數組
$page= $_GET['page'];
 $r = $this->page($array,5,$page);
 print_r($r);
 exit();
 foreach($r["source"] as $s){
 echo $s;
 }
function page($array,$pagesize,$current){
 $_return=array();
 $total=ceil(Count($array)/$pagesize);//求總頁數
$prev=(($current-1)<=0 ? "1":($current-1));//確定上一頁，如果當前頁是第一頁，點擊顯示第一頁
$next=(($current+1)>=$total ? $total:$current+1);//確定下一頁，如果當前頁是最后一頁，點擊下頁顯示最后一頁
$current=($current>($total)?($total):$current);//當前頁如果大于總頁數，當前頁為最后一頁
$start=($current-1)*$pagesize;//分頁顯示時，應該從多少條信息開始讀取
for($i=$start;$i<($start+$pagesize);$i++){
 array_push($_return,$array[$i]);//將該顯示的信息放入數組 $_return 中
}
 $pagearray["source"]=$_return;
 $pagearray["page"]="<a href=/"?page=1/">first</a> <a href=/"?page={$prev}
 /">prev</a> <a href=/"?page={$next}/">next</a> <a href=/"?page={$total}/">end</a>";//分頁樣式可跟據需要調整
return $pagearray;
 }