Comment analyser JSON en tant que tableau ou objet en PHP

Analyse JSON avec PHP

JSON est un format de données populaire qui est souvent utilisé pour échanger des données entre des applications Web et des API. En PHP, la fonction json_decode() peut être utilisée pour analyser des chaînes JSON dans des tableaux ou des objets PHP.

Pour analyser JSON en tant qu'objet, utilisez simplement la syntaxe $json = json_decode($data). L'objet résultant est ensuite accessible en utilisant la notation par points.

Cependant, si vous souhaitez analyser JSON sous forme de tableau, vous devez transmettre un deuxième argument true à la fonction json_decode(). Cela renverra un tableau associatif où les clés sont les noms de propriétés et les valeurs sont les valeurs correspondantes.

Considérez les données JSON suivantes comme exemple :

{
    "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"
                    }
                ]
            }
        }
    ]
}

Pour analyser ce JSON comme un tableau, utilisez la syntaxe suivante :

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

Cela renverra le tableau suivant :

[
    "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.",

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