php - 使用 PHP 在对象中添加更多字符串

Question

如何使用 PHP 向该对象添加更多字符串？我已经设法生成字符串，但我不能向对象添加更多字符串，也不能删除最后一个逗号。

像这样：

前，

{
    "themes":[
    {
        "name": "Amelia",
        "description": "Sweet and cheery.",
        "thumbnail": "http://bootswatch.com/amelia/thumbnail.png"
        }
    ]
}

后，

{
    "themes":[
            {
        "name": "juan",
        "description": "esto es un ejemplo.",
        "thumbnail": "http://example.com"
        },
                {
        "name": "juan2",
        "description": "esto es un ejemplo2.",
        "thumbnail": "http://example2.com"
        },
    ]
}

更新代码：

    // $_POST = Request::post
    if (Request::post('theme_title')) $theme_title = Request::post('theme_title'); else $theme_title = '';
    if (Request::post('theme_img')) $theme_img  = Request::post('theme_img'); else $theme_img = '';
    if (Request::post('theme_desc')) $theme_desc = Request::post('theme_desc'); else $theme_desc = '';

    $jsonfile = 'events.json';

    $data->themes[] = (object)array(
        "name"        => $theme_title,
        "description" => $theme_img,
        "thumbnail"   => $theme_desc

    );

    $json = str_replace('\/','/',json_encode( $data ));

    // $_POST = Request::post
    if (Request::post('Themes_add')){

          // file_put_contents
         File::setContent( $jsonfile, $json,$create_file = true, $append = true, );
    }

Answer 1

我想这只是一个字典对象，所以你可以这样做：

obj["key1"] = [];
obj["key2"] = [];

{
    "themes":[
            {
        "name": "juan",
        "description": "esto es un ejemplo.",
        "thumbnail": "http://example.com"
        },
                {
        "name": "juan2",
        "description": "esto es un ejemplo2.",
        "thumbnail": "http://example2.com"
        },
    ],
    "key1":[],
    "key2":[]
}

或者要将存储在 $person 中的另一个对象添加到主题键中，您可以：

obj["themes"][] = $person;

Answer 2

“juan2”，这很有趣。像这样的东西：

$obj->themes[] = (object)array(
    "name"        => "juan2",
    "description" => "esto es un ejemplo2.",
    "thumbnail"   => "http://example2.com"
);

干杯