PHP数组排序和按数量分割

Posted 2020-07-23 xihong

用php自带array_multisort函数排序

<?php
 
    $data = array();
    $data[] = array(‘volume‘ => 67, ‘edition‘ => 2);
    $data[] = array(‘volume‘ => 86, ‘edition‘ => 1);
    $data[] = array(‘volume‘ => 85, ‘edition‘ => 6);
    $data[] = array(‘volume‘ => 98, ‘edition‘ => 2);
    $data[] = array(‘volume‘ => 86, ‘edition‘ => 6);
    $data[] = array(‘volume‘ => 67, ‘edition‘ => 7);
 
    // 取得列的列表
    foreach ($data as $key => $row)
    {
        $volume[$key]  = $row[‘volume‘];
        $edition[$key] = $row[‘edition‘];
    }
 
    array_multisort($volume, SORT_DESC, $edition, SORT_ASC, $data);
 
    print_r($data);
?>

结果：

Array
(
    [0] => Array
        (
            [volume] => 98
            [edition] => 2
        )
    [1] => Array
        (
            [volume] => 86
            [edition] => 1
        )
    [2] => Array
        (
            [volume] => 86
            [edition] => 6
        )
    [3] => Array
        (
            [volume] => 85
            [edition] => 6
        )
    [4] => Array
        (
            [volume] => 67
            [edition] => 2
        )
    [5] => Array
        (
            [volume] => 67
            [edition] => 7
        )
)

数组分割：
array_slice($arr,0,10)

http://www.jb51.net/article/48841.htm