Php 如何在Laravel控制器中访问子数组键值对?
我的回应码:Php 如何在Laravel控制器中访问子数组键值对?,php,multidimensional-array,laravel-5,Php,Multidimensional Array,Laravel 5,我的回应码: Shpping : [ { "id": "1", "name": "Dress", "deleted_at": null, "created_at": null, "updated_at": null, "minicomp": [ { "id": "1", "cname": "basic", "base_id": 44 }, { "id": "2", "cname": "Shirt", "base_id": 177
Shpping : [
{
"id": "1",
"name": "Dress",
"deleted_at": null,
"created_at": null,
"updated_at": null,
"minicomp": [
{
"id": "1",
"cname": "basic",
"base_id": 44
},
{
"id": "2",
"cname": "Shirt",
"base_id": 177444
},
{
"id": "3",
"cname": "Pants",
"base_id": 444
}
]
}
];
我想访问父数组为“Shipping”的子数组“minicomp”中每个对象的基本id。如何访问它?首先使用
json\u decode()
将json转换为数组
$json =<your json>;
$array = json_decode($json,true);
Then
echo $array['Shpping '][0]]['minicomp'][0]['id'];//outputs 1
$json=;
$array=json_decode($json,true);
然后
echo$array['Shpping'][0]['minicomp'][0]['id']//产出1
例如:
<?php
$json = '[{
"id": "1",
"name": "Dress",
"deleted_at": null,
"created_at": null,
"updated_at": null,
"minicomp": [{
"id": "1",
"cname": "basic",
"base_id": 44
}, {
"id": "2",
"cname": "Shirt",
"base_id": 177444
}, {
"id": "3",
"cname": "Pants",
"base_id": 444
}]
}]';
$array = json_decode($json,true);
//print_r($array);
$minicomp = $array[0]['minicomp'];
echo $minicomp[0]['id'];
echo $minicomp[1]['id'];
?>
更新
用于获取所有ID。无需定义索引。使用foreach循环:
foreach($minicomp as $key=>$value){
echo $minicomp[$key]['id']."<br/>";
}
foreach($minicomp作为$key=>$value){
echo$minicomp[$key]['id']。“
”;
}
如果我想在不传递其索引值的情况下也回显所有的值,即在执行回显时直接获取其索引值,该怎么办@Hek matuse foreach循环。