public function get_submissions_to_export($form_id, $is_searched = false, $search = null)
 {
     $export_data = array();
     $is_payment = false;
     $option = new RM_Options();
     if (!(int) $form_id) {
         return false;
     }
     $fields = $this->get_all_form_fields($form_id);
     if (!$fields) {
         return false;
     }
     $field_ids = array();
     foreach ($fields as $field) {
         if ($field->field_type != 'Price' && $field->field_type != 'HTMLH' && $field->field_type != 'HTMLP') {
             $field_ids[] = $field->field_id;
             $export_data[0][$field->field_id] = $field->field_label;
         }
         $i = 0;
         if ($field->field_type == 'price' && $i == 0) {
             $is_payment = true;
             $export_data[0]['invoice'] = 'Payment Invoice';
             $export_data[0]['txn_id'] = 'Payment TXN Id';
             $export_data[0]['status'] = 'Payment Status';
             $export_data[0]['total_amount'] = 'Paid Amount';
             $export_data[0]['date'] = 'Date of Payment';
             $i++;
         }
     }
     if (!$is_searched && !$search instanceof stdClass) {
         $submission_ids = $this->get('SUBMISSIONS', array('form_id' => $form_id), array('%d'), 'col', 0, 999999, 'submission_id', null, true);
         if (!$submission_ids) {
             return false;
         }
         $submissions = RM_DBManager::get_results_for_array('SUBMISSION_FIELDS', 'field_id', $field_ids);
     } else {
         $submission_ids = RM_DBManager::get_results_for_last_col($search->interval, $form_id, $search->id, $search->value);
         if (!$submission_ids) {
             return false;
         }
         $submissions = RM_DBManager::get_sub_fields_for_array('SUBMISSION_FIELDS', 'field_id', $field_ids, 'submission_id', $submission_ids);
     }
     foreach ($submission_ids as $s_id) {
         $export_data[$s_id] = array();
         $payment = $this->get('PAYPAL_LOGS', array('submission_id' => $s_id), array('%d'), 'row', 0, 10, '*', null, true);
         foreach ($field_ids as $f_id) {
             $export_data[$s_id][$f_id] = null;
         }
         if ($is_payment) {
             $export_data[$s_id]['invoice'] = isset($payment->invoice) ?: null;
             $export_data[$s_id]['txn_id'] = isset($payment->txn_id) ?: null;
             $export_data[$s_id]['status'] = isset($payment->status) ?: null;
             $export_data[$s_id]['total_amount'] = isset($payment->total_amount) ? $option->get_formatted_amount($payment->total_amount, $payment->currency) : null;
             $export_data[$s_id]['date'] = isset($payment->posted_date) ? RM_Utilities::localize_time($payment->posted_date, get_option('date_format')) : null;
         }
     }
     foreach ($submissions as $submission) {
         $value = maybe_unserialize($submission->value);
         if (is_array($value)) {
             if (isset($value['rm_field_type']) && $value['rm_field_type'] == 'File') {
                 unset($value['rm_field_type']);
                 if (count($value) == 0) {
                     $value = null;
                 } else {
                     $file = array();
                     foreach ($value as $a) {
                         $file[] = wp_get_attachment_url($a);
                     }
                     $value = implode(',', $file);
                 }
             } else {
                 $value = implode(',', $value);
             }
         }
         if (array_key_exists($submission->submission_id, $export_data)) {
             $export_data[$submission->submission_id][$submission->field_id] = stripslashes($value);
         }
     }
     return $export_data;
 }