我正在嘗試從 json 數(shù)據(jù)中獲取特定值。我調(diào)用 Web 服務并使用此代碼<?php//API Url$url = 'http://myUrl/s1services';//Initiate cURL.$ch = curl_init($url);//The JSON data.$jsonData = array( 'service' => 'login',     'username' => 'demo', 'password' => 'demo', 'appid' =>  '256');//Encode the array into JSON.$jsonData = json_encode($jsonData, JSON_PRETTY_PRINT | JSON_INVALID_UTF8_SUBSTITUTE);//Tell cURL that we want to send a POST request.curl_setopt($ch, CURLOPT_POST, 1);//Attach our encoded JSON string to the POST fields.curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonData);//Set the content type to application/jsoncurl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json')); //Set the compression type to gzip curl_setopt($ch,CURLOPT_ENCODING , "gzip");curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch,CURLOPT_ENCODING , "utf-8");//execute post$result = curl_exec($ch);curl_close($ch);echo $result;?>我在下面的 json 中得到響應（我不知道為什么有些字段以二進制格式返回）> {    "success":true,   > "clientID":"9J8pJsP8KKnwH69V9JL4HNLKQrbpINb4SbDVOKPPG6X2JKbvLrLoM65ATqXLKYKrH2KtH5LLTaL5KdP0K4zPLNLOK2KrH5HGL6L4",> "objs":[>       {>          "COMPANY":"1000",>          "COMPANYNAME":"??????? Demo ??",>          "BRANCH":"1000",>          "BRANCHNAME":"????? - ????",>          "MODULE":"13",>          "MODULENAME":"???????",>          "REFID":"47",>          "REFIDNAME":"??????????? AE",>          "USERID":"1",>          "FINALDATE":"",>          "ROLES":"",>          "XSECURITY":"0",>          "EXPTIME":"">       }    ],    "ver":"5.00.520.11321",    "sn":"01100313514211",    "off":false,    "pin":false,    "appid":"256" }我想獲取 clientID 和 COMPANYNAME 值。我怎樣才能做到這一點 ？