如以下代码:
$arr = [
0 => [
"category" => "red",
"price" => 95
],
1 => [
"category" => "blue",
"price" => 85
],
2 => [
"category" => "red",
"price" => 75
]
];
//我希望将以上其归类为如下数组
[
"red" => [
0 => [
"category" => "red",
"price" => 95
],
1 => [
"category" => "red",
"price" => 75
]
],
"blue" => [
0 => [
"category" => "blue",
"price" => 85
]
]
]
希望大神能给个思路,谢谢
学习是最好的投资!