Php 将json格式转换为其他数组类型json格式

我有一个json格式，希望将其转换为我的自定义格式。请帮助我使用PHP进行此转换。请帮助我，我如何构建上述JSON数组格式。以下是我的格式：

{
"success": true,
"code": 601,
"u_id": "9",
"h_id": "5",
"data": [{
    "mp_cat": "Conveyance",
    "mp_id": "5",
    "mp_rating": "4",
    "mp_price": "630.00"
}, {
    "mp_cat": "Food & Drinks",
    "mp_id": "3",
    "mp_rating": "4",
    "mp_price": "104.55"
}, {
    "mp_cat": "Food & Drinks",
    "mp_id": "4",
    "mp_rating": "3",
    "mp_price": "450.00"
}]
}

想要这种格式：

 {
"success": true,
"code": 601,
"u_id": "9",
"h_id": "5",
"category": [{
    "Name": "Food & Drinks",
    "data": [{
        "mp_cat": "Food & Drinks",
        "mp_id": "3",
        "mp_rating": "4",
        "mp_price": "104.55"
    }, {
        "mp_cat": "Food & Drinks",
        "mp_id": "4",
        "mp_rating": "3",
        "mp_price": "450.00"
    }]
}, {
    "Name": "Conveyance",
    "data": [{
        "mp_cat": "Conveyance",
        "mp_id": "5",
        "mp_rating": "4",
        "mp_price": "630.00"
    }]
}]
}

---

您可以使用简单的foreach循环来构造数据，或者重新格式化json。 将以下解决方案的外观减半：

$json = '{
"success": true,
"code": 601,
"u_id": "9",
"h_id": "5",
"data": [{
    "mp_cat": "Conveyance",
    "mp_id": "5",
    "mp_rating": "4",
    "mp_price": "630.00"
}, {
    "mp_cat": "Food & Drinks",
    "mp_id": "3",
    "mp_rating": "4",
    "mp_price": "104.55"
}, {
    "mp_cat": "Food & Drinks",
    "mp_id": "4",
    "mp_rating": "3",
    "mp_price": "450.00"
}]
}';

$json_array = json_decode($json, true);
$new_array = array();
$category_array = array();
foreach($json_array as $key => $array){
    if($key == 'data'){
        foreach($array as $a){
            $category_array[$a['mp_cat']]['name']= $a['mp_cat'];
            $category_array[$a['mp_cat']]['data'][]= $a;
        }
    } else{
        $new_array[$key] = $array;
    }
}

$new_array['category'] = array_values($category_array);
echo json_encode($new_array);

输出：

{
    "success": true,
    "code": 601,
    "u_id": "9",
    "h_id": "5",
    "category": [{
        "name": "Conveyance",
        "data": [{
            "mp_cat": "Conveyance",
            "mp_id": "5",
            "mp_rating": "4",
            "mp_price": "630.00"
        }]
    }, {
        "name": "Food & Drinks",
        "data": [{
            "mp_cat": "Food & Drinks",
            "mp_id": "3",
            "mp_rating": "4",
            "mp_price": "104.55"
        }, {
            "mp_cat": "Food & Drinks",
            "mp_id": "4",
            "mp_rating": "3",
            "mp_price": "450.00"
        }]
    }]
}

---

从何处获取此json？从mysql查询获取该代码@deepakbhardwajHow将此json[{“标签”：“食品和饮料”，“数据”：“2”}，{“标签”：“生活方式”，“数据”：“1”}]转换为[[“食品和饮料”，“2”；“生活方式”，1]]，请使用phpp发布一个新问题