html名称标签数组类型命名元素的不同方式

Question

在一个项目中，我必须克隆我的输入元素。我在Google中搜索，并找到了不同的方法来做到这一点。一种方法是创建HTML名称标签输入数组。但是在不同地点的命名约定是不同的。就像，

<div id="content">
    <div class="row i_bike_servicing">
        <div class="col-md-2 p-2">
            <input type="text" class="form-control" name="from_place[]">
        </div>
        <div class="col-md-1 p-2">
            <input type="text" class="form-control" name="from_date[]">
        </div>
    </div>
</div>

我发现的另一种方式是：

<div id="content">
    <div class="row i_bike_servicing">
        <div class="col-md-2 p-2">
            <input type="text" class="form-control" name="bike_servicing[from_place][]">
        </div>
        <div class="col-md-1 p-2">
            <input type="text" class="form-control" name="bike_servicing[from_date][]">
        </div>
    </div>
</div>

并且也这样：

<div id="content">
    <div class="row i_bike_servicing">
        <div class="col-md-2 p-2">
            <input type="text" class="form-control" name="from_places[][from_place]">
        </div>
        <div class="col-md-1 p-2">
            <input type="text" class="form-control" name="from_dates[][from_date]">
        </div>
    </div>
</div>

这三种不同的名称标签数组语法的含义是什么？在这种情况下，我们必须选择哪个命名约定或所有这些命名是相同的？

参考： https：> https：> https： //laracasts.com/discuss/channels/general-discussion/any-better-way-way-to-to-transform-this-this-html-input-raray

Answer 1

from_place[], simple array, example :

from_place[0] = 'A',
from_place[1] = 'B',
from_place[2] = 'C'
= from_place = 0 = A
               1 = B
               2 = C

---

bike_servicing[from_place][], you can store data with `from_place` as the first key and each of them has a unique child key, example :

bike_servicing[from_place][0] = 'A',
bike_servicing[from_place][1] = 'B',
bike_servicing[from_place][2] = 'C'
= bike_servicing = from_place = 0 = 'A'
                              = 1 = 'B'
                              = 2 = 'C'

---

from_places[][from_place], lets say you can store data with unique key and `from_place` is the name for each key, example :

from_places[1][place] = 'A',
from_places[2][place] = 'B',
from_places[3][place] = 'C'
= from_places = 1st place = 'A'
                2nd place = 'B'
                3rd place = 'C'

Some reference : https://www.geeksforgeeks.org/multidimensional-arrays-in- php/