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php使用usort排序多维数组内的值
09/11
直接上代码：
$data = [
'一队' => [
'counts' => 0,
'totals' => 0,
'team' => [
['realname' => '张三', 'counts' => 10, 'totals' => 600],
['realname' => '张三2', 'counts' => 17, 'totals' => 478],
['realname' => '张三3', 'counts' => 190, 'totals' => 10000],
['realname' => '张三4', 'counts' => 8, 'totals' => 500],
]
],
'二队' => [
'counts' => 0,
'totals' => 0,
'team' => [
['realname' => '李四', 'counts' => 10, 'totals' => 600],
['realname' => '李四2', 'counts' => 17, 'totals' => 478],
['realname' => '李四3', 'counts' => 190, 'totals' => 10000],
['realname' => '李四4', 'counts' => 8, 'totals' => 500],
]
],
'三队' => [
'counts' => 0,
'totals' => 0,
'team' => [
['realname' => '王五', 'counts' => 10, 'totals' => 600],
['realname' => '王五2', 'counts' => 17, 'totals' => 478],
['realname' => '王五3', 'counts' => 190, 'totals' => 10000],
['realname' => '王五4', 'counts' => 8, 'totals' => 500],
['realname' => '王五5', 'counts' => 11, 'totals' => 600],
]
],
];
//数组根据指定key排序
foreach ($data as $key => &$val) {
usort($val['team'], function ($a, $b) {
//根据totals从高到低排序
if ($a['totals'] != $b['totals']) {
if ($a['totals'] > $b['totals']) { // 如果是 < 就是从低到高排序
return -1;
} elseif ($a['totals'] == $b['totals']) {
return 0;
} else {
return 1;
}
//php7+可以这么写,使用航天飞船符 <=> 更简洁，逻辑清晰
//return $b['totals'] <=> $a['totals'];
}
//根据counts从高到底排序
if ($a['counts'] > $b['counts']) { // 如果是 < 就是从低到高排序
return -1;
} elseif ($a['counts'] == $b['counts']) {
return 0;
} else {
return 1;
}
//php7+可以这么写,使用航天飞船符 <=> 更简洁，逻辑清晰
//return $b['counts'] <=> $a['counts'];
});
}
unset($val);
echo '<pre>';
print_r($data);
看看最终输出的结果：
Array
(
[一队] => Array
(
[counts] => 0
[totals] => 0
[team] => Array
(
[0] => Array
(
[realname] => 张三3
[counts] => 190
[totals] => 10000
)
[1] => Array
(
[realname] => 张三
[counts] => 10
[totals] => 600
)
[2] => Array
(
[realname] => 张三4
[counts] => 8
[totals] => 500
)
[3] => Array
(
[realname] => 张三2
[counts] => 17
[totals] => 478
)
)
)
[二队] => Array
(
[counts] => 0
[totals] => 0
[team] => Array
(
[0] => Array
(
[realname] => 李四3
[counts] => 190
[totals] => 10000
)
[1] => Array
(
[realname] => 李四
[counts] => 10
[totals] => 600
)
[2] => Array
(
[realname] => 李四4
[counts] => 8
[totals] => 500
)
[3] => Array
(
[realname] => 李四2
[counts] => 17
[totals] => 478
)
)
)
[三队] => Array
(
[counts] => 0
[totals] => 0
[team] => Array
(
[0] => Array
(
[realname] => 王五3
[counts] => 190
[totals] => 10000
)
[1] => Array
(
[realname] => 王五5
[counts] => 11
[totals] => 600
)
[2] => Array
(
[realname] => 王五
[counts] => 10
[totals] => 600
)
[3] => Array
(
[realname] => 王五4
[counts] => 8
[totals] => 500
)
[4] => Array
(
[realname] => 王五2
[counts] => 17
[totals] => 478
)
)
)
)
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