Piwik\Common::getSqlStringFieldsArray PHP Метод

    public static function getSqlStringFieldsArray($fields)
    {
        if (is_string($fields)) {
            $fields = array($fields);
        }
        $count = count($fields);
        if ($count == 0) {
            return "''";
        }
        return '?' . str_repeat(',?', $count - 1);
    }

 /**
  *  uses tracker db
  */
 public function insertNew($goal)
 {
     $Generic = Factory::getGeneric($this->db);
     // pg is throwing error when empty values are given for 'FLOAT' columns
     if (empty($goal['revenue'])) {
         unset($goal['revenue']);
     }
     if (empty($goal['revenue_subtotal'])) {
         unset($goal['revenue_subtotal']);
     }
     if (empty($goal['revenue_tax'])) {
         unset($goal['revenue_tax']);
     }
     if (empty($goal['revenue_shipping'])) {
         unset($goal['revenue_shipping']);
     }
     if (empty($goal['revenue_discount'])) {
         unset($goal['revenue_discount']);
     }
     $fields = implode(', ', array_keys($goal));
     $bindFields = Common::getSqlStringFieldsArray($goal);
     $goal['idvisitor'] = $Generic->bin2db($goal['idvisitor']);
     $sql = 'INSERT INTO ' . $this->table . '( ' . $fields . ' ) ' . 'VALUES ( ' . $bindFields . ' ) ';
     $bind = array_values($goal);
     $result = $Generic->insertIgnore($sql, $bind);
     return $result;
 }