如何从 API 中获取 JSON 数据

Question

我用过雅虎的符号查询

http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=yahoo&callback=YAHOO.Finance.SymbolSuggest.ssCallback

其中 returns 数据采用 JSON 格式。喜欢关注

YAHOO.Finance.SymbolSuggest.ssCallback(
{
    "ResultSet": {
        "Query": "ya",
        "Result": [
            {
                "symbol": "YHOO",
                "name": "Yahoo! Inc.",
                "exch": "NMS",
                "type": "S",
                "exchDisp": "NASDAQ"
            },
            {
                "symbol": "AUY",
                "name": "Yamana Gold, Inc.",
                "exch": "NYQ",
                "type": "S",
                "exchDisp": "NYSE"
            },
            {
                "symbol": "YZC",
                "name": "Yanzhou Coal Mining Co. Ltd.",
                "exch": "NYQ",
                "type": "S",
                "exchDisp": "NYSE"
            },
            {
                "symbol": "YRI.TO",
                "name": "YAMANA GOLD INC COM NPV",
                "exch": "TOR",
                "type": "S",
                "exchDisp": "Toronto"
            },
            {
                "symbol": "8046.TW",
                "name": "NAN YA PRINTED CIR TWD10",
                "exch": "TAI",
                "type": "S",
                "exchDisp": "Taiwan"
            },
            {
                "symbol": "600319.SS",
                "name": "WEIFANG YAXING CHE 'A'CNY1",
                "exch": "SHH",
                "type": "S",
                "exchDisp": "Shanghai"
            },
            {
                "symbol": "1991.HK",
                "name": "TA YANG GROUP",
                "exch": "HKG",
                "type": "S",
                "exchDisp": "Hong Kong"
            },
            {
                "symbol": "1303.TW",
                "name": "NAN YA PLASTIC TWD10",
                "exch": "TAI",
                "type": "S",
                "exchDisp": "Taiwan"
            },
            {
                "symbol": "0294.HK",
                "name": "YANGTZEKIANG",
                "exch": "HKG",
                "type": "S",
                "exchDisp": "Hong Kong"
            },
            {
                "symbol": "YAVY",
                "name": "Yadkin Valley Financial Corp.",
                "exch": "NMS",
                "type": "S",
                "exchDisp": "NASDAQ"
            }
        ]
    }
}
)

我想获取结果第一个数组数据

我正在尝试使用下面的方法，但它对我不起作用

$file = "http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=yahoo&callback=YAHOO.Finance.SymbolSuggest.ssCallback";
$data = file_get_contents($file);
$result = json_decode($data);

我想得到第一个数组符号的结果

我用过

$result ['YAHOO.Finance.SymbolSuggest.ssCallback']['ResultSet']['result']['symbol']

它对我不起作用，请帮助我，我怎样才能从上面得到符号 API

谢谢桑吉布

Answer 1

试试这个

<?php
$file = "http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=yahoo&callback=YAHOO.Finance.SymbolSuggest.ssCallback";
$data = file_get_contents($file);
$data = mb_substr($data, strpos($data, '{'));
$data = mb_substr($data, 0, -1);
$result = json_decode($data, true);
print_r($result['ResultSet']['Result'][0]);

Answer 2

只需从请求中删除回调参数url。然后你会得到一个有效的JSON-object。例如。在你的情况下它将是：
http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=yahoo
而不是：
http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=yahoo&callback=YAHOO.Finance.SymbolSuggest.ssCallback

如何从 API 中获取 JSON 数据

How to get JSON data from an API

php

json

yahoo