使用 PHP 解析 JSON

JSON 是一種流行的數(shù)據(jù)格式，通常用于在 Web 應(yīng)用程序和 API 之間交換數(shù)據(jù)。在 PHP 中，json_decode() 函數(shù)可用于將 JSON 字符串解析為 PHP 數(shù)組或?qū)ο蟆?/p>

要將 JSON 解析為對象，只需使用 $json = json_decode($data) 語法。然后可以使用點表示法訪問生成的對象。

但是，如果要將 JSON 解析為數(shù)組，則需要將第二個參數(shù) true 傳遞給 json_decode() 函數(shù)。這將返回一個關(guān)聯(lián)數(shù)組，其中鍵是屬性名稱，值是相應(yīng)的值。

以以下 JSON 數(shù)據(jù)為例：

{
    "kind": "shopping#products",
    "etag": "\"T9uPnY2MZMB71TDpKXXZdr3yWX4/qtJ5vmpftFWNfijyLD9ti2Xpj-w\"",
    "id": "tag:google.com,2010:shopping/products",
    "selfLink": "https://www.googleapis.com/shopping/search/v1/public/products?country\u003dus&q\u003dsony&maxResults\u003d3&startIndex\u003d2",
    "nextLink": "https://www.googleapis.com/shopping/search/v1/public/products?country\u003dus&q\u003dsony&maxResults\u003d3&startIndex\u003d5",
    "previousLink": "https://www.googleapis.com/shopping/search/v1/public/products?country\u003dus&q\u003dsony&maxResults\u003d3&startIndex\u003d1",
    "totalItems": 633694,
    "startIndex": 2,
    "itemsPerPage": 3,
    "currentItemCount": 3,
    "items": [
        {
            "kind": "shopping#product",
            "id": "tag:google.com,2010:shopping/products/1161353/11882813508247586172",
            "selfLink": "https://www.googleapis.com/shopping/search/v1/public/products/1161353/gid/11882813508247586172",
            "product": {
                "googleId": "11882813508247586172",
                "author": {
                    "name": "Buy.com",
                    "accountId": "1161353"
                },
                "creationTime": "2011-04-24T05:13:38.000Z",
                "modificationTime": "2011-08-05T17:45:24.000Z",
                "country": "US",
                "language": "en",
                "title": "Sony BRAVIA KDL-46EX720 46 inch 3D LED HDTV 1080p 120Hz",
                "description": "Entertainment lovers the slim Sony EX720-Series LED HDTV is for you. See precise motion detail plus watch your favorite 2D or 3D entertainment in clear, vivid Full HD 1080p picture quality with incredible contrast. You can even connect to the internet and access a great selection of online entertainment with Netflix , Hulu Plus , Pandora , Qriocity and more - there s always something on. Plus video chat with friends and family when you Skype on the big screen.",
                "link": "http://clickfrom.buy.com/default.asp?adid\u003d17902&sURL\u003dhttp%3A%2F%2Fwww.buy.com%2Fprod%2Fsony-bravia-kdl-46ex720-46-3d-led-hdtv-1080p-120hz%2Fq%2Fsellerid%2F10004001%2Floc%2F111%2F219891693.html",
                "brand": "Sony",
                "condition": "new",
                "gtin": "00027242817081",
                "gtins": [
                    "00027242817081"
                ],
                "inventories": [
                    {
                        "channel": "online",
                        "availability": "inStock",
                        "price": 1348.0,
                        "currency": "USD"
                    }
                ],
                "images": [
                    {
                        "link": "http://ak.buy.com/PI/0/1000/219891693.jpg"
                    }
                ]
            }
        }
    ]
}

將此 JSON 解析為數(shù)組，使用以下語法：

<code class="php">$json = json_decode($data, true);</code>

這將返回以下數(shù)組：

[
    "kind" => "shopping#products",
    "etag" => "\"T9uPnY2MZMB71TDpKXXZdr3yWX4/qtJ5vmpftFWNfijyLD9ti2Xpj-w\"",
    "id" => "tag:google.com,2010:shopping/products",
    "selfLink" => "https://www.googleapis.com/shopping/search/v1/public/products?country\u003dus&q\u003dsony&maxResults\u003d3&startIndex\u003d2",
    "nextLink" => "https://www.googleapis.com/shopping/search/v1/public/products?country\u003dus&q\u003dsony&maxResults\u003d3&startIndex\u003d5",
    "previousLink" => "https://www.googleapis.com/shopping/search/v1/public/products?country\u003dus&q\u003dsony&maxResults\u003d3&startIndex\u003d1",
    "totalItems" => 633694,
    "startIndex" => 2,
    "itemsPerPage" => 3,
    "currentItemCount" => 3,
    "items" => [
        [
            "kind" => "shopping#product",
            "id" => "tag:google.com,2010:shopping/products/1161353/11882813508247586172",
            "selfLink" => "https://www.googleapis.com/shopping/search/v1/public/products/1161353/gid/11882813508247586172",
            "product" => [
                "googleId" => "11882813508247586172",
                "author" => [
                    "name" => "Buy.com",
                    "accountId" => "1161353"
                ],
                "creationTime" => "2011-04-24T05:13:38.000Z",
                "modificationTime" => "2011-08-05T17:45:24.000Z",
                "country" => "US",
                "language" => "en",
                "title" => "Sony BRAVIA KDL-46EX720 46 inch 3D LED HDTV 1080p 120Hz",
                "description" => "Entertainment lovers the slim Sony EX720-Series LED HDTV is for you. See precise motion detail plus watch your favorite 2D or 3D entertainment in clear, vivid Full HD 1080p picture quality with incredible contrast. You can even connect to the internet and access a great selection of online entertainment with Netflix , Hulu Plus , Pandora , Qriocity and more - there s always something on. Plus video chat with friends and family when you Skype on the big screen.",

以上是如何在 PHP 中將 JSON 解析為數(shù)組或?qū)ο蟮脑敿?xì)內(nèi)容。更多信息請關(guān)注PHP中文網(wǎng)其他相關(guān)文章！