Question

我想对这个二维数组进行排序。阵列代表一个足球俱乐部，每一排都是一名球员。

首先，我想按“位置”排序。我有一个代表排序顺序的搜索数组。所以最后的位置应该像这样排序：

守门员
第二名
第3位

其次我希望按每个位置升序的“数字”排序。

排序前：

number | name           | position     | age
-------+----------------+--------------+----
2      | Mario Goetze   | 2nd position | 37
4      | Lukas Podolski | 2nd position | 24
1      | Marco Reuss    | Goal keeper  | 24
99     | Inge Schmidt   | 3rd position | 23

排序后：

number | name           | position     | age
-------+----------------+--------------+----
1      | Marco Reuss    | Goal keeper  | 24
4      | Lukas Podolski | 2nd position | 24
2      | Mario Goetze   | 2nd position | 37
99     | Inge Schmidt   | 3rd position | 23

数据：

Array ( 
    [83] => Array ( [number] => 2 [name] => Mario Goetze [position] => 2nd position [age] => 37 ) 
    [96] => Array ( [number] => 4 [name] => Lukas Podolski [position] => 2nd position [age] => 24 ) 
    [66] => Array ( [number] => 1 [name] => Marco Reuss [position] => Goal keeper [age] => 24 ) 
    [359] => Array ( [number] => 99 [name] => Inge Schmidt [position] => 3rd position [age] => 23 )
)

我尝试使用uasort()，subval_sort()等等...但没有任何效果。

Answer 1

$players = array(
    83 => array ( 'number' => 2, 'name' => 'Mario Goetze', 'position' => '2nd position', 'age' => 37 ),
    96 => array ( 'number' => 4, 'name' => 'Lukas Podolski', 'position' => '2nd position', 'age' => 24 ),
    66 => array ( 'number' => 1, 'name' => 'Marco Reuss', 'position' => 'Goal keeper', 'age' => 24 ),
    359 => array ( 'number' => 99, 'name' => 'Inge Schmidt', 'position' => '3rd position', 'age' => 23 )
);

usort($players, function($a, $b) {
    if ($cmp = $a['position'] - $b['position']) return $cmp;
    return $a['number'] - $b['number'];
});

你说你想按“数字”排序＆＃39;升序，但您提供的样本输出显示降序排序。上面的代码是按升序排列的，但是如果您想将其反转，请将$a['number'] - $b['number']更改为$b['number'] - $a['number'];

通过2个不同的选项排序php数组

1 个答案: