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Json回应。 使用javascript或php检索特定值

[英]Json response. Retrieve specific values with javascript or php

 原文  2015-05-07 20:03:44  0   3    javascript/ php/ jquery/ json

问题描述

我有一个在shopify中工作的API，当我使用特定任务的url时，它会在JSON中返回一个响应。 浏览器将其翻译为RAW。 但是，我的问题是如何从JSON响应中检索特定值？ 我想只使用javascript或php脚本提取“属性”部分。 下面的代码不是file.json，它是我调用特定URL时服务器的响应。 mysite.myshopify.com/admin/orders.json?fields=line_items

JSON响应示例： 

{
    orders: [50]
    0:  {
        name: "#1347"
        line_items: [1]
        0:  {
            fulfillment_service: "manual"
            fulfillment_status: null
            gift_card: false
            grams: 0
            id: 966685828
            price: "45.00"
            product_id: 455951420
            quantity: 1
            requires_shipping: true
            sku: ""
            taxable: true
            title: "Athletic Style Auto renew (ships every 1 Months)"
            variant_id: 1292559264
            variant_title: ""
            vendor: null
            name: "Athletic Style Auto renew (ships every 1 Months)"
            variant_inventory_management: null
            properties: [9]
            0:  {
                name: "Glove Size"
                value: "M"
            }-
            1:  {
                name: "Hat Size"
                value: "L/XL"
            }-
            2:  {
                name: "Pant Size"
                value: "30x30"
            }-
            3:  {
                name: "Right or Left Handed?"
                value: "Right"
            }-
            4:  {
                name: "Shirt Size"
                value: "M"
            }-
            5:  {
                name: "Shoe Size"
                value: "9"
            }-
            6:  {
                name: "shipping_interval_frequency"
                value: "1"
            }-
            7:  {
                name: "shipping_interval_unit_type"
                value: "Months"
            }-
            8:  {
                name: "subscription_id"
                value: "1522"
            }-
            -
            product_exists: true
            fulfillable_quantity: 1
            total_discount: "0.00"
            tax_lines: [0]
        }-
    -
    }
} 


 1: { line_items: [1] 0: { fulfillment_service: "manual" fulfillment_status: null gift_card: false grams: 0 id: 978288644 price: "45.00" product_id: 449447992 quantity: 1 requires_shipping: true sku: "" taxable: true title: "Loud and Wild Style Auto renew (ships every 1 Months)" variant_id: 1253803928 variant_title: "" vendor: null name: "Loud and Wild Style Auto renew (ships every 1 Months)" variant_inventory_management: null properties: [9] 0: { name: "Glove Size" value: "XL" }- 1: { name: "Hat Size" value: "L/XL" }- 2: { name: "Pant Size" value: "44x30" }- 3: { name: "Right or Left Handed?" value: "Left" }- 4: { name: "Shirt Size" value: "XXL" }- 5: { name: "Shoe Size" value: "10.5" }- 6: { name: "shipping_interval_frequency" value: "1" }- 7: { name: "shipping_interval_unit_type" value: "Months" }- 8: { name: "subscription_id" value: "1523" }- - product_exists: true fulfillable_quantity: 1 total_discount: "0.00" tax_lines: [0] }- - }- 2: {...}- 3: { line_items: [1] 0: { fulfillment_service: "manual" fulfillment_status: null gift_card: false grams: 0 id: 974181252 price: "45.00" product_id: 455951420 quantity: 1 requires_shipping: true sku: "" taxable: true title: "Athletic Style Auto renew (ships every 1 Months)" variant_id: 1292559264 variant_title: "" vendor: null name: "Athletic Style Auto renew (ships every 1 Months)" variant_inventory_management: null properties: [9] 0: { name: "Glove Size" value: "XL" }- 1: { name: "Hat Size" value: "L/XL" }- 2: { name: "Pant Size" value: "42x30" }- 3: { name: "Right or Left Handed?" value: "Right" }- 4: { name: "Shirt Size" value: "XXL" }- 5: { name: "Shoe Size" value: "12" }- 6: { name: "shipping_interval_frequency" value: "1" }- 7: { name: "shipping_interval_unit_type" value: "Months" }- 8: { name: "subscription_id" value: "1522" }- - product_exists: true fulfillable_quantity: 1 total_discount: "0.00" tax_lines: [0] }- - }

3 个解决方案

解决方案1
 2  2015-05-07 20:44:45

正如人们在评论中所说，您的回答不是有效的JSON。 与您发布的对象最接近的有效对象将格式化为： 

var response = {
orders: [50],
0:{
    name: "#1347",
    line_items: [1],
    0:{
        fulfillment_service: "manual",
        fulfillment_status: null,
        gift_card: false,
        grams: 0,
        id: 966685828,
        price: "45.00",
        product_id: 455951420,
        quantity: 1,
        requires_shipping: true,
        sku: "",
        taxable: true,
        title: "Athletic Style Auto renew (ships every 1 Months)",
        variant_id: 1292559264,
        variant_title: "",
        vendor: null,
        name: "Athletic Style Auto renew (ships every 1 Months)",
        variant_inventory_management: null,
        properties: [9],
        0:  {
            name: "Glove Size",
            value: "M"
        },
        1:  {
            name: "Hat Size",
            value: "L/XL"
        },
        2:  {
            name: "Pant Size",
            value: "30x30"
        },
        3:  {
            name: "Right or Left Handed?",
            value: "Right"
        },
        4:  {
            name: "Shirt Size",
            value: "M"
        },
        5:  {
            name: "Shoe Size",
            value: "9"
        },
        6:  {
            name: "shipping_interval_frequency",
            value: "1"
        },
        7:  {
            name: "shipping_interval_unit_type",
            value: "Months"
        },
        8:  {
            name: "subscription_id",
            value: "1522"
        },
        product_exists: true,
        fulfillable_quantity: 1,
        total_discount: "0.00",
        tax_lines: [0]
      }
   }
};

这是有效的javascript对象，但不是JSON对象。

要成为有效的JSON，您需要将键作为字符串（“key”：value） 

{
"orders": [50],
"0":{
    "name": "#1347",
    "line_items": [1],
    "0":{
        "fulfillment_service": "manual",
        "fulfillment_status": null,
        "gift_card": false,
        "grams": 0,
        "id": 966685828,
        "price": "45.00",
        "product_id": 455951420,
        "quantity": 1,
        "requires_shipping": true,
        "sku": "",
        "taxable": true,
        "title": "Athletic Style Auto renew (ships every 1 Months)",
        "variant_id": 1292559264,
        "variant_title": "",
        "vendor": null,
        "name": "Athletic Style Auto renew (ships every 1 Months)",
        "variant_inventory_management": null,
        "properties": [9],
        "0":  {
            "name": "Glove Size",
            "value": "M"
        },
        "1":  {
            "name": "Hat Size",
            "value": "L/XL"
        },
        "2":  {
            "name": "Pant Size",
            "value": "30x30"
        },
        "3":  {
            "name": "Right or Left Handed?",
            "value": "Right"
        },
        "4":  {
            "name": "Shirt Size",
            "value": "M"
        },
        "5":  {
            "name": "Shoe Size",
            "value": "9"
        },
        "6":  {
            "name": "shipping_interval_frequency",
            "value": "1"
        },
        "7":  {
            "name": "shipping_interval_unit_type",
            "value": "Months"
        },
        "8":  {
            "name": "subscription_id",
            "value": "1522"
        },
        "product_exists": true,
        "fulfillable_quantity": 1,
        "total_discount": "0.00",
        "tax_lines": [0]
      }
   }
}

如果要提取属性，一旦有了对象的引用，就可以使用Javascript作为对象进行访问 

var myProperties = response["0"]["0"]["properties"];

在PHP上对响应执行JSON解析后，可以将它们作为嵌套关联数组进行访问。 

 $myResponse = json_decode($response);
 $myProperties = $response['0']['0']['properties'];

解决方案2
 1  2015-05-07 20:48:33

数据格式不正确。 它缺少逗号和括号。 与下面的工作代码比较，找到依赖项。

一旦数据格式正确，只需使用点和括号表示法即可访问。 使用下面的代码来更好地理解。

参考： Mozilla - 使用对象 

  data['0']['0'].title;

运行代码片段进行测试： 

 <html> <body> Value: <div id="value" style="font-family:monospace;font-size:16px;"></div> <p> JSON: <textarea id="json" style="background-color:aliceblue;padding:0.5em;border:1px black solid;width:100%; height:40em;"></textarea> <script type="text/javascript"> var data = { orders: [50], 0: { name: "#1347", line_items: [1], 0: { fulfillment_service: "manual", fulfillment_status: null, gift_card: false, grams: 0, id: 966685828, price: "45.00", product_id: 455951420, quantity: 1, requires_shipping: true, sku: "", taxable: true, title: "Athletic Style Auto renew (ships every 1 Months)", variant_id: 1292559264, variant_title: "", vendor: null, name: "Athletic Style Auto renew (ships every 1 Months)", variant_inventory_management: null, properties: [9], 0: { name: "Glove Size", value: "M" }, 1: { name: "Hat Size", value: "L/XL" }, 2: { name: "Pant Size", value: "30x30" } } } }; document.getElementById('value').innerHTML = data['0']['0'].title; document.getElementById('json').value = 'json:\\n' + JSON.stringify(data, null, ' '); </script> </body> </html>

解决方案3
 0 已采纳  2015-05-07 20:14:47

如果你想使用PHP，听起来你正在寻找json_decode

PHP 

<?php
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';

var_dump(json_decode($json));
var_dump(json_decode($json, true));

?>

http://php.net/manual/en/function.json-decode.php

在您的方案中： 

$response = //your api response
$php_obj = json_decode($response);

//Print a specific order and specific items properties
var_dump($php_obj->orders[0]->line_items[0]->properties);

//Print the properties for each item in each order 
//(prefixed with the index of the order number and item number)
foreach ($php_obj->orders as $order_index => $order) {
   foreach ($order->line_items as $item_index => $item) {
     echo "order: {$order_index} item: {$item_index}";
     var_dump($item->properties);
   }
}

如果你想使用JS

PHP / JS 

<script>
  var response = "<?php echo $response; /*again your api response*/ ?>";
  var obj = JSON.parse(response);
  console.log(obj.orders[0].line_items[0].properties)
</script>

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