Invalid json for View Records API

Hi,

I am using the View records api to get a list of report. I ask for json response, while sending the get api. But in the reponse I get an invalid json.

Please let me know what should be done to resolve this error.

Below is the code for ref

$service_url = " https://creator.zoho.com/api/json/*************/view/Images_Report?authtoken=*************************&zc_ownername=*********&scope=creatorapi";

$curl = curl_init();

$headers = array(

'Content-Type: application/json',

'Accept: application/json'

);

curl_setopt($curl, CURLOPT_URL,$service_url);

curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);

curl_setopt($curl, CURLOPT_RETURNTRANSFER, true );

curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

$curl_response = curl_exec($curl);

curl_close($curl);

$response = json_decode($curl_response,TRUE);

print_r($response);

I donot get a json reponse.