json语法

语法：

• 花括号保存对象  { "firstName":"John" , "lastName":"Doe" }
• 方括号保存数组    数组的值有下标则用花括号

$data=[];     []
$data=[1,2];  [1,2] 

$data=[1,'age'=>20];
//json
{
    "0": 1, 
    "age": 20
}

$data=[
[1,2]
];
//json
[[1,2]]



$data=[
['banana','age'=>20]
];
//json
[{"0":"banana","age":20}]

 

$data=[
    1,
    'age'=>20,
    [
        1,
        'name'=>'tom',
        new stdClass(),
        'obj'=> new stdClass(),
        [
            'words',
            'type'=>'english'
        ]
    ]
];

//json
{
    "0": 1, 
    "1": {
        "0": 1, 
        "1": { }, 
        "2": {
            "0": "words", 
            "type": "english"
        }, 
        "name": "tom", 
        "obj": { }
    }, 
    "age": 20
}

$data=[
    'articles'=>[
        [
            "title"  =>"高铁严重晚点 损失谁来补偿",
            "content"=>"文章内容体",

        ],
        [
            "title"  =>"文章标题 最多64个汉字",
            "content"=>"文章内容体，最多20480个字符",

        ]
    ],
    [
        [
            "id"=> 293054,
            "author" =>"思烁哥哥"
        ],
        [
            "id"=> 293054,
            "author" =>"作者"
        ]
    ],    
    [
                    "title"  =>"文章标题 最多64个汉字",
    ],

];

//json
{
    "0": [
        {
            "id": 293054, 
            "author": "思烁哥哥"
        }, 
        {
            "id": 293054, 
            "author": "作者"
        }
    ], 
    "1": {
        "title": "文章标题 最多64个汉字"
    }, 
    "articles": [
        {
            "title": "高铁严重晚点 损失谁来补偿", 
            "content": "文章内容体"
        }, 
        {
            "title": "文章标题 最多64个汉字", 
            "content": "文章内容体，最多20480个字符"
        }
    ]
}

$data=new stdClass();

{}

$subData=new stdClass();
$subData->age=20;
$data=new stdClass();
$data->name='tom';
$data->obj=$subData;
//json
{"name":"tom","obj":{"age":20}}

$subData=new stdClass();
$subData->age=20;
$subData->type=['math'=>['集合,几何'],'english',1,['lisi','dili']];
$data=new stdClass();
$data->name='tom';
$data->like=['ball',8,'football',new stdClass(),[1,2]];
$data->obj=$subData;


//json
{
    "name": "tom", 
    "like": [
        "ball", 
        8, 
        "football", 
        { }, 
        [
            1, 
            2
        ]
    ], 
    "obj": {
        "age": 20, 
        "type": {
            "0": "english", 
            "1": 1, 
            "2": [
                "lisi", 
                "dili"
            ], 
            "math": [
                "集合,几何"
            ]
        }
    }
}