add_action('gform_after_submission_1', 'add_to_google_spreadsheet', 10,        2);
function add_to_google_spreadsheet($entry, $form) {
// This is the web app URL of your Google Script create in previous step
$post_url =  'https://script.google.com/macros/s/AKfycbwFTe3H0w8bp_2yviORAGhNZzIwvmKmdaCHf KEOdORwjO6pJPQ/exec';
// Put all the form fields (names and values) in this array
$doctor=('doctor source => rgar($entry,3)');
$doctorimage= explode(",",$doctor);
$body = array('first name' => rgar($entry, '1'), 'last name' =>  rgar($entry, '2'),'doctor source' => rgar($entry, '3'),'doctor image1' =>  rgar($doctorimage[0], '4'),'doctor image2' => rgar($doctorimage[1], '5'),);
// Send the data to Google Spreadsheet via HTTP POST request
$request = new WP_Http();
$response = $request->request($post_url, array('method' => 'POST',   'sslverify' => false, 'body' => $body));
}