GetClientsProducts API error: Malformed UTF-8 characters

[kferoz]

Hi,

"GetClientsProducts" API is giving error ("Error generating JSON encoded response: Malformed UTF-8 characters") with few records and working fine with other set of records in the same database. Also it works fine when I comment the code i.e. "'responsetype' => 'json'". With this change it works with all records and showing result in XML type. 

For my application, I need result in JSON format which I'm not able to do.

Code is;

    function get_clientproducts($url, $ide, $sec, $cid)
    {
        $ch =     curl_init();
                curl_setopt($ch, CURLOPT_URL, $url);
                curl_setopt($ch, CURLOPT_POST, 1);
                curl_setopt($ch, CURLOPT_POSTFIELDS,
                    http_build_query(
                        array(
                            'action' => 'GetClientsProducts',
                            'username' => $ide,
                            'password' => $sec,
                            'clientid' => $cid,
                            'stats' => true,
//                            'responsetype' => 'json',
                        )
                    )
                );

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $response = curl_exec($ch);
        curl_close($ch);
        return $response;
    }