INSERT INTO `members` (`full_names`,`gender`,`physical_address`,`contact_number`) VALUES ('Leonard Hofstadter','Male','Woodcrest',0845738767);  

$statement = $db->prepare('INSERT INTO students (name, grade) VALUE (:name, :grade)');
$tstatement->bindParam(':name', 'rebaz', PDO::PARAM_STR);
$statement->bindParam(':grade', 1, PDO::PARAM_INT);
 $statement->execute();
$studentId = $db->lastInsertId()