我有一個返回以下內容的 CURL： {"data":{"base":"BTC","currency":"USD","amount":"9342.29"}}我正在嘗試將數量 JSON 變量轉換為 PHP 變量。我正在使用以下嘗試：$result=curl_exec($ch);//1var_dump(json_decode($result));//2var_dump(json_decode($result, true));//3$data = json_decode($result[0]->data,true);之前的 var_dumps 的響應是 //1 /home/usbanktech/public_html/bitcoin2.php:24:int 1 //2 /home/usbanktech/public_html/bitcoin2.php:26:int 1  //3 $data attempt returns nothing試圖將 "amount":"9342.29" 放入像 $amount 這樣的 php 中。完整代碼：// Generated by curl-to-PHP: http://incarnate.github.io/curl-to-php/$ch = curl_init();curl_setopt($ch, CURLOPT_URL, "https://api.coinbase.com/v2/prices/BTC-USD/buy");//curl_setopt($ch, CURLOPT_POSTFIELDS, "{\"name\": \"New receive address\"}");$headers = array();$headers[] = "Content-Type: application/json";$headers[] = "Authorization: Bearer abd90df5f27a7b170cd775abf89d632b350b7c1c9d53e08b340cd9832ce52c2c";//$headers[] = "CB-ACCESS-KEY: <your api key>";//$headers[] = "CB-ACCESS-SIGN: <the user generated message signature>";//$headers[] = "CB-ACCESS-TIMESTAMP: <a timestamp for your request>";curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);$result=curl_exec($ch);// Closingcurl_close($ch);$json = $result;$array = json_decode($json,1);$amount = $array['data']['amount'];echo $amount;