php基於數組的分頁實現

關於數組的分頁函數,用數組進行分頁的好處是能夠方便的進行聯合多表查詢,只須要將查詢的結果放在數組中就能夠了如下是數組分頁的函數,函數page_array用於數組的分頁，函數show_array用於分頁函數的操做及顯示，須要配合使用.兩個函數經過全局變量$countpage發生聯繫,此變量用於跟蹤總頁碼數.

<?php  
/** 
 * 數組分頁函數  核心函數  array_slice 
 * 用此函數以前要先將數據庫裏面的全部數據按必定的順序查詢出來存入數組中 
 * $count   每頁多少條數據 
 * $page   當前第幾頁 
 * $array   查詢出來的全部數組 
 * order 0 - 不變     1- 反序 
 */   
  
function page_array($count,$page,$array,$order){  
    global $countpage; #定全局變量  
    $page=(empty($page))?'1':$page; #判斷當前頁面是否爲空 若是爲空就表示爲第一頁面   
       $start=($page-1)*$count; #計算每次分頁的開始位置  
    if($order==1){  
      $array=array_reverse($array);  
    }     
    $totals=count($array);    
    $countpage=ceil($totals/$count); #計算總頁面數  
    $pagedata=array();  
    $pagedata=array_slice($array,$start,$count);  
    return $pagedata;  #返回查詢數據  
}  
/** 
 * 分頁及顯示函數 
 * $countpage 全局變量，照寫 
 * $url 當前url 
 */  
function show_array($countpage,$url){  
     $page=empty($_GET['page'])?1:$_GET['page'];  
     if($page > 1){  
        $uppage=$page-1;  
  
     }else{  
        $uppage=1;  
     }  
  
     if($page < $countpage){  
        $nextpage=$page+1;  
  
     }else{  
            $nextpage=$countpage;  
     }  
         
        $str='<div style="border:1px; width:300px; height:30px; color:#9999CC">';  
    $str.="<span>共  {$countpage}  頁 / 第 {$page} 頁</span>";  
    $str.="<span><a href='$url?page=1'>   首頁  </a></span>";  
    $str.="<span><a href='$url?page={$uppage}'> 上一頁  </a></span>";  
    $str.="<span><a href='$url?page={$nextpage}'>下一頁  </a></span>";  
    $str.="<span><a href='$url?page={$countpage}'>尾頁  </a></span>";  
    $str.='</div>';  
    return $str;  
}  
?>

　　

<?php
class PaginationArray{
 public $pageArray=array(); //數組
 public $pageSize=10; //每頁顯示記錄數
 public $current= 1; //當前頁
 private $total=0; //總頁數
 private $prev=0; //上一頁
 private $next=0; //下一頁
 public $argumetsOther='';//設置參數
 function __construct($array=array(),$pageSize=10,$current=1){
 $this->pageArray=$array;
 $this->pageSize=$pageSize;
 $this->current=$current; 
 }
 /*經過數組進行初始化
 * 
 * 數組爲關聯數組,參數索引爲pageArray,pageSize,current
 * 
 */
 function setArguments($arr){
 if (is_array($arr)){
  $this->pageArray=$arr['pageArray'];
  $this->pageSize=$arr['pageSize'];
  $this->current=$arr['current'];
 }else{
  return ;
 }
 }
 //返回連接
 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 $pagearray;
 }
 //連接的樣式
 private function linkStyle($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}\">首頁</a> <a href=\"?page={$this->prev}&{$this->argumetsOther}\">上一頁</a> <a href=\"?page={$this->next}&{$this->argumetsOther}\">下一頁</a> <a href=\"?page={$this->total}&{$this->argumetsOther}\">尾頁</a>";
  break;
 }
 return $linkStyle;
 }
}
//調用的實例
/*
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"];
*/
?>