Question

我正在尝试解析下面JSON中的符号：

$trending_url = "https://api.stocktwits.com/api/2/trending/symbols/equities.json";

此处的回复示例：

{
    "response": {
        "status": 200
    },
    "symbols": [{
        "id": 11631,
        "symbol": "JNUG",
        "title": "Direxion Daily Jr Gld Mnrs Bull 3X Shrs",
        "is_following": false
    }, {
        "id": 9553,
        "symbol": "NUGT",
        "title": "Direxion Daily Gold Miners Bull 3X Shrs",
        "is_following": false
    }, {
        "id": 12100,
        "symbol": "BABA",
        "title": "Alibaba",
        "is_following": false
    }]
}

从JSON上面 - 我想通过循环提取符号（即JNUG，NUGT，BABA）。这就是我做的......

$trending_url_info = json_decode(file_get_contents($trending_url),true);

echo $trending_url_info->symbols->symbol[0] . "<br>";
echo $trending_url_info->response->symbols->symbol[0] . "<br>";
echo $trending_url_info->response->symbols[0]->symbol[0] . "<br>";

echo $trending_url_info['response']['symbols'][0]['symbol'] . "<br>";
echo $trending_url_info['response']['symbols'][0]['symbol'][0] . "<br>";
echo $trending_url_info['response']['symbols']['symbol'][0] . "<br>";

然而上面没有一个回声给我这个符号。我如何循环并从JSON提要中提取符号？任何帮助都是适用的。谢谢。

Answer 1

update不在draw下。这就是update这些都不起作用的原因。 Group symbols response也会使关联数组不是对象。

$trending_url_info['response']...这应该有效。

json_decode

true会给$trending_url_info['symbols'][0]['symbol']

Answer 2

这是对这些属性的正确访问的简单演示：

<?php
$jsonInput = <<<EOT
{
    "response": {
        "status": 200
    },
    "symbols": [{
        "id": 11631,
        "symbol": "JNUG",
        "title": "Direxion Daily Jr Gld Mnrs Bull 3X Shrs",
        "is_following": false
    }, {
        "id": 9553,
        "symbol": "NUGT",
        "title": "Direxion Daily Gold Miners Bull 3X Shrs",
        "is_following": false
    }, {
        "id": 12100,
        "symbol": "BABA",
        "title": "Alibaba",
        "is_following": false
    }]
}
EOT;

$jsonData = json_decode($jsonInput);
foreach ($jsonData->symbols as $symbol) {
  var_dump($symbol->symbol);
}

输出显然是：

string(4) "JNUG"
string(4) "NUGT"
string(4) "BABA"

Answer 3

＆＃13;

 myselect.attr('contenteditable', 'true'); 
 myselect.find('br').remove();

＆＃13;

在PHP中读取JSON_decode - 结果未显示

3 个答案: