將兩個插入查詢與事務合併。但是我需要抓住第一個插入行ID

Question

$db->query("INSERT into `users` (username, password, email) 
    VALUES ('$username', '$hashpassword', '$email')"); 

$userid = mysqli_insert_id($db->link); 

$db->query("INSERT into `users logins` (userid, token, ip) 
    VALUES ('$userid', '$token', '$ip')"); 

以上是舊代碼。以下是我的新產品：

$db->query("BEGIN TRANSACTION; 
INSERT into `users` (username, password, email) 
VALUES ('$username', '$hashpassword', '$email'); 

[here I need to get the row ID of the above insert] 

INSERT into `users logins` (userid, token, ip) 
VALUES ('$userid', '$token', '$ip') 
COMMIT;"); 

如何獲取第一個插入行ID並將其用於第二次插入？

Answer 1

使用LAST_INSERT_ID()

... 

INSERT into `users logins` (userid, token, ip) 
VALUES (LAST_INSERT_ID(), '$token', '$ip') 

... 

或者怎麼樣創建Stored Procedure

DELIMITER $$ 
CREATE Procedure InsertRecord 
(
    IN _userName VARCHAR(50), 
    IN _passWord VARCHAR(50), 
    IN _email VARCHAR(50), 
    IN _token VARCHAR(50), 
    IN _ip VARCHAR(50) 
) 
BEGIN 
    DECLARE Last_ID INT; 

    INSERT into `users` (username, password, email) 
    VALUES (_userName, _passWord, _email); 

    SET Last_ID = LAST_INSERT_ID(); 

    INSERT into `users logins` (userid, token, ip) 
    VALUES (LAST_INSERT_ID(), _token, _ip); 

    SELECT Last_ID; 
END $$ 
DELIMITER ;