How to get mysqli to allow SQL-based User-Defined Variables as column aliases?

Hi all, I’m able to get mysqli to set a user-defined variable and the use it later on either in a column value definition or a conditional, I.e. (semi-pseudocode since I’m not in front of my work computer) First do mysqli $conn->query(‘Set @foo = “bar”;’); …which will prepare the database session with the variable. Then do a $stmt = $conn->stmt_init() Then do a $stmt->prepare(‘Select @foo as “baz”;’); Finally do a $stmt->execute(); That results in: ‘baz’ ——— “bar” _however_ if I want to use a SQL user-defined variable as a column alias, mysqli throws an error. This does not work: $conn->query(‘set @acolname = “aCol”;’); $stmt = $conn->stmt_init() $stmt->prepare(‘Select “data” as @acolname;’); $stmt->execute(); If I ran the straight SQL in a SQL application, making the select statement a variable as well, and did a prepare and execute, it would work just fine Mysqli however throws an error with the column alias being a SQL user-defined variable. Help? Get Outlook for iOS<https://aka.ms/o0ukef>