Question

I’ve been reading up on Stored Procedures & MYSQLi from here http://php.net/manual/en/mysqli.quickstart.stored-procedures.php

and other sources, but am still unsure how to call a stored procedure with ? (like a prepared statement)

Is it possible to bind parameters to a stored procedure, in something similiar to this:

$mysqli->query("CREATE PROCEDURE p(IN id_var INT) BEGIN INSERT INTO test(id)
         VALUES(id_var); END;"))
$mysqli->bindParam("i", $some_int);
$mysqli->query("CALL p");

Answer 1

Binding parameters is a PHP-side operation; stored procedures are a MySQL thing. The two are not related and should not be treated as such.

With prepared statements and parameter-binding, you define a query using the prepare() method, then bind values into the ?s using bind_param(). So given your example, a prepared-statements approach would look like this:

$stmt = $mysqli->prepare("INSERT INTO test (id) VALUES (?)");
$stmt->bind_param('i', $some_int);
$stmt->execute();

On the other hand, with a stored procedure, you simply call it using the CALL command as a normal query:

//procedure created beforehand
CREATE PROCEDURE p(IN id_var INT)
INSERT INTO test (id)
VALUES (id_var);
//now in PHP:
$mysqli->query("CALL p($some_int)");

I’m not certain if you can run a CREATE PROCEDURE using the query() method.

So to answer your question: yes, it is possible to use both at the same time (because they are different things), but not in the way that you’re imagining, and it would be redundant.