Question

代码：

$decode = json_decode($get, TRUE);
    foreach($decode['List'] as $lst) {

    }

我有一个数组$ lst，看起来像这样：

"List":[{
    "Name":"Ivan",
    "Surname":"Petrov",
}, {
    "Name":"Ivan",
    "Surname":"Ivanov",
}, {
    "Name":"Andrey",
    "Surname":"Sidorov",
}]

我需要删除重复项，以便保留这样的内容（重复'Name'）：

"List":[{
    "Name":"Ivan",
    "Surname":"Petrov",
}, {
    "Name":"Andrey",
    "Surname":"Sidorov",
}]

Answer 1

使用lodash：

var list = [{
    "Name":"Ivan",
    "Surname":"Petrov",
}, {
    "Name":"Ivan",
    "Surname":"Ivanov",
}, {
    "Name":"Andrey",
    "Surname":"Sidorov",
}];

var noDupsList = _.uniq(list, 'Name');

alert(JSON.stringify(noDupsList));

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.js"></script>

Answer 2

我不认为存在预定义的功能来实现这一目标。

但是你通过迭代应用比较，并且可以使用delete运算符从json中删除一个喜欢删除x [0]

从json数组中删除重复项

2 个答案: