Can php arrays be paginated?

Regarding the paging function of arrays, the advantage of using arrays for paging is that it is convenient to perform joint multi-table queries. You only need to put the query results in the array.

#The following are the functions of array paging. The function page_array is used for paging arrays. The function show_array is used for the operation and display of paging functions. They need to be used together. The two functions are connected through the global variable $countpage, which is used to track the total number of pages. (Recommended learning: PHP programming from entry to proficiency)

<?php  
/** 
 * 数组分页函数  核心函数  array_slice 
 * 用此函数之前要先将数据库里面的所有数据按一定的顺序查询出来存入数组中 
 * $count   每页多少条数据 
 * $page   当前第几页 
 * $array   查询出来的所有数组 
 * order 0 - 不变     1- 反序 
 */   
  
function page_array($count,$page,$array,$order){  
    global $countpage; #定全局变量  
    $page=(empty($page))?&#39;1&#39;:$page; #判断当前页面是否为空 如果为空就表示为第一页面   
       $start=($page-1)*$count; #计算每次分页的开始位置  
    if($order==1){  
      $array=array_reverse($array);  
    }     
    $totals=count($array);    
    $countpage=ceil($totals/$count); #计算总页面数  
    $pagedata=array();  
    $pagedata=array_slice($array,$start,$count);  
    return $pagedata;  #返回查询数据  
}  
/** 
 * 分页及显示函数 
 * $countpage 全局变量，照写 
 * $url 当前url 
 */  
function show_array($countpage,$url){  
     $page=empty($_GET[&#39;page&#39;])?1:$_GET[&#39;page&#39;];  
     if($page > 1){  
        $uppage=$page-1;  
  
     }else{  
        $uppage=1;  
     }  
  
     if($page < $countpage){  
        $nextpage=$page+1;  
  
     }else{  
            $nextpage=$countpage;  
     }  
         
        $str=&#39;<div style="border:1px; width:300px; height:30px; color:#9999CC">&#39;;  
    $str.="<span>共  {$countpage}  页 / 第 {$page} 页</span>";  
    $str.="<span><a href=&#39;$url?page=1&#39;>   首页  </a></span>";  
    $str.="<span><a href=&#39;$url?page={$uppage}&#39;> 上一页  </a></span>";  
    $str.="<span><a href=&#39;$url?page={$nextpage}&#39;>下一页  </a></span>";  
    $str.="<span><a href=&#39;$url?page={$countpage}&#39;>尾页  </a></span>";  
    $str.=&#39;</div>&#39;;  
    return $str;  
}  
?>

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