如何使用JSON发送数组的数组 [英] how to send array of array using JSON

问题描述

我有一个功能，可以从数据库中获取一些数据并将其发布到我的客户端.目前，它以普通数组形式发送数据(输出类似于MyArray(a，b，c，d ..))，但我希望它成为MyArray(a(b，c，d)). Castegory(名称，ID，订单..)..谁能帮忙..这是我已经使用的版本的代码

i have a function which brings me some data from database and posts to my client. At the moment it sends data as a normal array(output is something like MyArray (a,b,c,d..)), but i want it to be MyArray (a(b,c,d)).. As like Castegory(Name, ID, Order..).. Can anyone please Help..Here is my code for already used version

public function get_button_template()
    {
        $this->q = "SELECT * FROM button_template ORDER BY order_number ASC";
        $this->r = mysql_query($this->q);
        if(mysql_num_rows($this->r) > 0)
        {        
            while($this->f = mysql_fetch_assoc($this->r))
            {
                $this->buttons[$this->i]["ID"] = $this->f["ID"];          
                $this->buttons[$this->i]["name"] = $this->f["button_name"];               
                $this->buttons[$this->i]["category"] = $this->f["button_category"];
                $this->buttons[$this->i]["order_number"] = $this->f["order_number"]; 
                $this->i++;
            }
        }
        return $this->buttons;
    }

编辑请稍作详细说明. 当我解析这个时，我得到的是这样的:

EDIT A little öore detail please.. when i parsed this i get something like this:

"Vaule"( "Key1": "Value1" "Key2": "Value2" .

但是我想要的是类似的东西

But what i want is omething like

 `"Category0":( "Key1": "Value1", "Key2": "Value2" . ) 

"Category1":( "Key1": "Value1", "Key2": "Value2" . )..`

如何发送带有键值对的多维数组?

How can i send a multidimentional array with key-value pairs?

推荐答案

只需更改构建数组的方式.如果要按类别分组:

Just change how you build the array. If you want to group by category:

修改

更改代码以使用名称=>键映射创建编号类别.

Code changed to create numbered categories using a name => key map.

$category_map = array(); $cat_nr = 0;
while ($this->f = mysql_fetch_assoc($this->r)) {
    if (!isset($category_map[$this->f["button_category"]])) {
        $category_key = "Category{$cat_nr}";
        $category_map[$this->f["button_category"]] = $category_key;
        ++$cat_nr;
    } else {
        $category_key = $category_map[$this->f["button_category"]];
    }
    $this->buttons[$category_key]][] = array(
        'category' => $this->f["button_category"],
        "ID" => $this->f["ID"],
        "name" => $this->f["button_name"],
        "order_number" => $this->f["order_number"],
    );
    $this->i++;
}

这会产生一个像这样的数组:

This produces an array like:

<category 1>: [
    (CatName1, Id1, name1, ordernr1)
    (CatName1, Id2, name2, ordernr2)
],
<category 2>: [
    (CatName2, Id3, name3, ordernr3)
    (CatName2, Id4, name4, ordernr4)
]

然后在最终结果上使用 json_encode .

Then use json_encode on the end-result.

顺便说一句，不确定为什么将这些按钮存储在对象本身内；-)

Btw, not sure why you store those buttons inside the object itself ;-)

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