php - 根据对象属性对对象数组进行排序

Question

我有一个由对象组成的数组。

[
    {
        "name" => "First",
        "order" => 5
    },
    {
        "name" => "Second",
        "order" => 3
    },
    {
        "name" => "Third",
        "order" => 9
]

如何通过升序“订单”值来订购它？

我应该得到：

[
    {
        "name" => "Second",
        "order" => 3
    },
    {
        "name" => "First",
        "order" => 5
    },
    {
        "name" => "Third",
        "order" => 9
];

Answer 1

您应该能够将这样的 PHPusort()函数用于数组：

usort($array, function($a, $b){return $a["order"]-$b["order"];});

或对象：

usort($array, function($a, $b){return $a->order-$b->order;});

这是 PHP 参考：usort()