根据列的值从多维数组中获取最大数组

Question

我有这个数组调用 $aSumGame :

Array
(
[682] => Array
    (
        [nature] => 682
        [totalGames] => 3
        [category] => super
    )

[707] => Array
    (
        [nature] => 707
        [totalGames] => 2
        [category] => event
    )

[728] => Array
    (
        [nature] => 728
        [totalGames] => 2
        [category] => event
    )

)

现在我想获取具有最大列数 totalGames 的数组，在本例中我想获取具有键 682 的数组。我试过这样 $aMaxGame= max($aSumGame['totalGames']); 但没有用。你能帮帮我吗？

Answer 1

您可以将 uasort 与 current 函数一起使用，例如

uasort($arr,function($a,$b){
    return $b['totalGames'] - $a['totalGames'];
});

print_r(current($arr));

您可以像

一样简单地使用 usort

usort($arr,function($a,$b){
    return $b['totalGames'] - $a['totalGames'];
});

print_r($arr[0]);

Demo

Answer 2

检查一下，还没有运行但应该没问题:

$array = array('682'=>array('nature'=>1,'totalGames'=>3), '707'=>array('nature'=>1,'totalGames'=>2));
$tempArray = array();
foreach($array as $id=>$array2) {
    $tempArray[$array2['totalGames']][] = $id;// store by the number of games, ex : array('2'=>array(707, 728), '3'=>array(682)
}
$maxKey = max(array_keys($tempArray)); //get the max, ex: 3
var_dump($tempArray[$maxKey]); //all id`s with max, ex: array(682)
list($oneResult) = $tempArray[$maxKey]; //get 682
var_dump($array[$oneResult]); //element from the initial array from key

Answer 3

试试这个

usort($array, function($a, $b) {
    return strnatcasecmp($b['totalGames'], $a['totalGames']);
});

print_r(current($array));

根据列的值从多维数组中获取最大数组

Get the max array from an array multidimensional based on value of column

php

arrays

multidimensional-array

php-5.3