PHP MySQL PDO INSERT then SELECT

Question

I have the following SQL query:

INSERT INTO tags(name) VALUES(LOWER(#[tag]));
SELECT LAST_INSERT_ID() AS ID;

I'm using it on MySQL using PHP PDO and i get the following error:

Fatal error: Uncaught exception 'PDOException' with message 
'SQLSTATE[HY000]: General error' in 
/home/cabox/workspace/backend/Toolbox.php:62 Stack trace: #0 

This is my PHP Code:

$NI = (int)($DB->query(get_query("CREATE_TAG",[
    "tag" => strtolower($name)
]))->fetch(PDO::FETCH_ASSOC)["ID"]);

The get_query functions returns a query after all #[] are replaced acording to the array in the second parameter. ( get_query("CREATE_TAG",["tag" => strtolower("MyTagName")]) will return

INSERT INTO tags(name) VALUES(LOWER("MyTagName"));
SELECT LAST_INSERT_ID() AS ID;

)

Can't i insert then select in the same query?

EDIT: I used this:

INSERT INTO tags(name) OUTPUT INSERTED.ID VALUES(LOWER(#[tag]));

and it worked just fine.