php - Duplicate data stored when using cURL -

i trying post data using curl web services store data database there, it's storing same data 2 times, instead of one. applied condition there , it's working can not find reason behind behavior.

        $postedarray['login_credentials'] = $this->login_data;         $postedarray['post_data'] = $this->arrpostdata;          $str = http_build_query($postedarray);          $ch = curl_init();         curl_setopt($ch, curlopt_httpheader, array('expect:'));         curl_setopt($ch, curlopt_url, $this->requesturl);         curl_setopt($ch, curlopt_encoding, 'gzip,deflate');         curl_setopt($ch, curlopt_post, true);         curl_setopt($ch, curlopt_postfields, $str);         curl_setopt($ch, curlopt_returntransfer, true);         curl_setopt($ch, curlopt_connecttimeout, 999);         curl_setopt($ch, curlopt_timeout, 999);         if (curl_exec($ch) === false) {             echo 'curl error: ' . curl_error($ch);             return false;         }         $response = curl_exec($ch);         $response = json_decode($response, true);          curl_close($ch);         return $response; 

because calling curl_exec 2 times:

if (curl_exec($ch) === false) {         echo 'curl error: ' . curl_error($ch);         return false; } $response = curl_exec($ch); 

the first time while evaluating response inside if, , again after if. 1 should dropped.