Retrieve id of each INSERT statement in multi query - php

Question

Is it possible to retrieve id (ua_id is in my case) for each INSERT statement in following SQL request
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,1);
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,2);
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,3);
using mysqli::multi_query() to execute it wheres ua_id is AUTO_INCREMENT primary key?

Answer 1

In MySQL you can use LAST_INSERT_ID() function. You need to use this function each time - after INSERT statement. It gets ID for the last inserted record.
MySQL documentation - LAST_INSERT_ID()

Answer 2

Well. you do a multiquery, let's use it:
<?php
$db->multi_query('
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,1);
SELECT LAST_INSERT_ID();
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,2);
SELECT LAST_INSERT_ID();
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,3);
SELECT LAST_INSERT_ID()') or trigger_error($db->error);
do {
if ($result = $db->store_result()) {
while ($row = $result->fetch_row()) {
var_dump($row);
}
}
} while ($db->next_result());

Answer 3

Do you mean lastInsertId?
http://cl1.php.net/manual/en/mysqli.insert-id.php
hope it helps!

Answer 4

mysqli->insert_id will return the ID of the first row inserted if you insert in the same table you then know that the next row inserted is the first row insert_id + 1...
If you work with many tables at once you then need to scroll back your results then you need to create another query using :
SELECT MAX(id) FROM table-a WHERE 1
...
SELECT MAX(id) FROM table-n WHERE 1
Now I don't know what is better (single insert query or multi query)...

Answer 5

Yes. Use $mysqli->insert_id - see working example below.
$mysqli = new mysqli(host, user, pass, db);
$query = "INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,1); ";
$query .= "INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,2); ";
$query .= "INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,3); ";
if ($mysqli->multi_query($query)) {
do {
/* Returns the auto generated id used in the last query */
printf("%d\n", $mysqli->insert_id);
/* Check if loop should continue */
if ($mysqli->more_results() === FALSE) break;
} while ($mysqli->next_result());
}
Use built in mysqli::$insert_id - documentation: http://php.net/manual/en/mysqli.insert-id.php