Try this :
$url = "https://openapi.api.com/api/v2/open/customers/10005182";
$curl = curl_init($url);
$data = array(
"Phone" => "7656493111"
);
$data = json_encode($data);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
curl_setopt($curl, CURLOPT_HTTPHEADER, array('Authorization: ApiKey...