问题描述

我有一个包含要分页显示的数据的数组.

I have an array with the data which I want to display with pagination.

$display_array = Array
(
    [0] => "0602 xxx2",
    [1] => "0602 xxx3",
    [2] => 5 // Total= 2+3
    [3] => "0602 xxx3",
    [4] => "0602 saa4",
    [5] => 7 // Total = 3+4
)

我尝试过这样的事情

function pagination($display_array, $page)
{   
    global $show_per_page;
    $page = $page < 1 ? 1 : $page;
    $start = ($page - 1) * $show_per_page;
    $end = $page * $show_per_page;
    for($i = $start; $i < $end; $i++)
    {
        ////echo $display_array[$i] . "<p>";
        // How to manipulate this?   
        // To get the result as I described below.
    }
}

我想做一个分页以获得这样的预期结果:

I want do a pagination to get the expected result like this:

如果我定义 $show_per_page = 2; 那么 pagination($display_array, 1); 输出:

If I define $show_per_page = 2; then pagination($display_array, 1); outputs:

0602 xxx2
0602 xxxx3
Total:5

和 paganation($display_array, 2); 输出:

0602 xxx3
0602 saa4
Total:7

如果我定义了 $show_per_page = 3;，那么 pagination($display_array, 1); 输出:

If I define $show_per_page = 3;, then pagination($display_array, 1); outputs:

0602 xxx2
0602 xxxx3
Total: 5 
0602 xxx3

和 paganation($display_array, 2); 输出:

0602 saa4
Total:7

如果我定义 $show_per_page = 4; 输出:

0602 xxx2
0602 xxxx3
Total:5
0602 xxx3
0602 saa4
Total: 7 

推荐答案

看看这个:

    function paganation($display_array, $page) {
        global $show_per_page;

        $page = $page < 1 ? 1 : $page;

        // start position in the $display_array
        // +1 is to account for total values.
        $start = ($page - 1) * ($show_per_page + 1);
        $offset = $show_per_page + 1;

        $outArray = array_slice($display_array, $start, $offset);

        var_dump($outArray);
    }

    $show_per_page = 2;

    paganation($display_array, 1);
    paganation($display_array, 2);


    $show_per_page = 3;
    paganation($display_array, 1);
    paganation($display_array, 2);

输出为:

// when $show_per_page = 2;
array
  0 => string '0602 xxx2' (length=9)
  1 => string '0602 xxx3' (length=9)
  2 => int 5
array
  0 => string '0602 xxx3' (length=9)
  1 => string '0602 saa4' (length=9)
  2 => int 7

// when $show_per_page = 3;
array
  0 => string '0602 xxx2' (length=9)
  1 => string '0602 xxx3' (length=9)
  2 => int 5
  3 => string '0602 xxx3' (length=9)
array
  0 => string '0602 saa4' (length=9)
  1 => int 7

$show_per_page = 3 的输出与您的不同，但我不确定您的期望是什么?您想获取剩下的所有内容(即0602 saa4"和7")以及前一个元素(即0602 xxx3")吗?

The output for $show_per_page = 3 is different than yours, but I'm not sure what you expect? You want to fetch everything that is left (i.e. '0602 saa4' and 7) plus one previous element (i.e. '0602 xxx3')?

这篇关于如何从数组进行分页?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！