我正在使用此代码从 coinmarketcap api 导出 3 种货币信息↓：
<?php
$url = 'https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest';
$parameters = [
'start' => '1',
'limit' => '3',
'convert' => 'USD'
];
$headers = [
'Accepts: application/json',
'X-CMC_PRO_API_KEY: my_own_key'
];
$qs = http_build_query($parameters); // query string encode the parameters
$request = "{$url}?{$qs}"; // create the request URL
$curl = curl_init(); // Get cURL resource
// Set cURL options
curl_setopt_array($curl, array(
CURLOPT_URL => $request, // set the request URL
CURLOPT_HTTPHEADER => $headers, // set the headers
CURLOPT_RETURNTRANSFER => 1 // ask for raw response instead of bool
));
header('Content-Type: application/json');
$response = curl_exec($curl); // Send the request, save the response
print_r(json_decode($response)); // print json decoded response
echo $response[1]->name;
curl_close($curl); // Close request
?>
-------------
result is ↓:
---------------
stdClass Object
(
[status] => stdClass Object
(
[timestamp] => 2021-06-05T17:35:04.344Z
[error_code] => 0
[error_message] =>
[elapsed] => 12
[credit_count] => 1
[notice] =>
[total_count] => 5530
)
[data] => Array
(
[0] => stdClass Object
(
[id] => 1
[name] => Bitcoin
[symbol] => BTC
[slug] => bitcoin
[num_market_pairs] => 9702
[date_added] => 2013-04-28T00:00:00.000Z
[tags] => Array
(
[0] => mineable
[1] => pow
[2] => sha-256
[3] => store-of-value
[4] => state-channels
[5] => coinbase-ventures-portfolio
[6] => three-arrows-capital-portfolio
[7] => polychain-capital-portfolio
[8] => binance-labs-portfolio
[9] => arrington-xrp-capital
[10] => blockchain-capital-portfolio
[11] => boostvc-portfolio
[12] => cms-holdings-portfolio
[13] => dcg-portfolio
[14] => dragonfly-capital-portfolio
[15] => electric-capital-portfolio
[16] => fabric-ventures-portfolio
[17] => framework-ventures
[18] => galaxy-digital-portfolio
[19] => huobi-capital
[20] => alameda-research-portfolio
[21] => a16z-portfolio
[22] => 1confirmation-portfolio
[23] => winklevoss-capital
[24] => usv-portfolio
[25] => placeholder-ventures-portfolio
[26] => pantera-capital-portfolio
[27] => multicoin-capital-portfolio
[28] => paradigm-xzy-screener
)
[max_supply] => 21000000
[circulating_supply] => 18727431
[total_supply] => 18727431
[platform] =>
[cmc_rank] => 1
[last_updated] => 2021-06-05T17:34:02.000Z
[quote] => stdClass Object
(
[USD] => stdClass Object
(
[price] => 36108.810885716
[volume_24h] => 34482634689.161
[percent_change_1h] => -0.22000049
[percent_change_24h] => -2.95972194
[percent_change_7d] => 5.12257226
[percent_change_30d] => -36.74685465
[percent_change_60d] => -38.11198041
[percent_change_90d] => -29.1772556
[market_cap] => 676225264354.3
[last_updated] => 2021-06-05T17:34:02.000Z
)
)
)
[1] => stdClass Object
(
[id] => 1027
[name] => Ethereum
[symbol] => ETH
[slug] => ethereum
[num_market_pairs] => 6019
[date_added] => 2015-08-07T00:00:00.000Z
[tags] => Array
(
[0] => mineable
[1] => pow
[2] => smart-contracts
[3] => ethereum
[4] => coinbase-ventures-portfolio
[5] => three-arrows-capital-portfolio
[6] => polychain-capital-portfolio
[7] => binance-labs-portfolio
[8] => arrington-xrp-capital
[9] => blockchain-capital-portfolio
[10] => boostvc-portfolio
[11] => cms-holdings-portfolio
[12] => dcg-portfolio
[13] => dragonfly-capital-portfolio
[14] => electric-capital-portfolio
[15] => fabric-ventures-portfolio
[16] => framework-ventures
[17] => hashkey-capital-portfolio
[18] => kinetic-capital
[19] => huobi-capital
[20] => alameda-research-portfolio
[21] => a16z-portfolio
[22] => 1confirmation-portfolio
[23] => winklevoss-capital
[24] => usv-portfolio
[25] => placeholder-ventures-portfolio
[26] => pantera-capital-portfolio
[27] => multicoin-capital-portfolio
[28] => paradigm-xzy-screener
)
[max_supply] =>
[circulating_supply] => 116168370.374
[total_supply] => 116168370.374
[platform] =>
[cmc_rank] => 2
[last_updated] => 2021-06-05T17:34:02.000Z
[quote] => stdClass Object
(
[USD] => stdClass Object
(
[price] => 2623.0501255974
[volume_24h] => 29873289567.151
[percent_change_1h] => -0.77281419
[percent_change_24h] => -3.22775583
[percent_change_7d] => 13.22095983
[percent_change_30d] => -26.86990803
[percent_change_60d] => 23.92154062
[percent_change_90d] => 56.91903203
[market_cap] => 304715458499.97
[last_updated] => 2021-06-05T17:34:02.000Z
)
)
)
[2] => stdClass Object
(
[id] => 825
[name] => Tether
[symbol] => USDT
[slug] => tether
[num_market_pairs] => 13422
[date_added] => 2015-02-25T00:00:00.000Z
[tags] => Array
(
[0] => store-of-value
[1] => payments
[2] => stablecoin
[3] => stablecoin-asset-backed
[4] => solana-ecosystem
)
[max_supply] =>
[circulating_supply] => 62209255385.452
[total_supply] => 64476291004.33
[platform] => stdClass Object
(
[id] => 1027
[name] => Ethereum
[symbol] => ETH
[slug] => ethereum
[token_address] => 0xdac17f958d2ee523a2206206994597c13d831ec7
)
[cmc_rank] => 3
[last_updated] => 2021-06-05T17:34:08.000Z
[quote] => stdClass Object
(
[USD] => stdClass Object
(
[price] => 1.0004588605114
[volume_24h] => 73072076028.18
[percent_change_1h] => 0.01364608
[percent_change_24h] => -0.08415844
[percent_change_7d] => -0.01154942
[percent_change_30d] => 0.03709874
[percent_change_60d] => -0.09232759
[percent_change_90d] => 0.00764482
[market_cap] => 62237800756.194
[last_updated] => 2021-06-05T17:34:08.000Z
)
)
)
)
)
这个结果是另一个数组中另一个数组中的数组......我无法理解例如：如何回显每个“id”的“价格”