Getting into stored procedures, need help converting a query - php

Question

I never used stored procedures, but I faced a reality when I need to move my query to server. Please assist.
This is my function that I created via PHP:
function getResults($userid) {
$query = "select * from myTable where iduser= ?";
$stmt = $this->openDb()->prepare($query);
$stmt->bindValue(1, $userid, PDO::PARAM_INT);
$stmt->execute();
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
return $rows;
}
I never used stored procedures and not sure how to approach:
How do I add this as stored procedure to MySQL, so I could submit
one integer variable to it
How do I `prepare' the integer variable that I will submit to stored procedure
How do I retrieve the result set from stored procedure back to php
function.
If you could assist, I will review your solution and will be able to continue on my own.
I checked google and I see that to create a stored procedure I need to start like this:
CREATE PROCEDURE `getResults` (IN userid INT)
BEGIN
END

Answer 1

MYSQL:
DELIMITER $$
DROP PROCEDURE IF EXISTS getResults$$
CREATE PROCEDURE getResults(IN I_USERID INT(10))
BEGIN
SELECT * FROM `myTable` WHERE iduser = I_USERID;
END$$
DELIMITER ;
PHP:
$sql = "CALL getResults(?)";
$stmt = $this->openDb()->prepare($sql);
$stmt->execute(array($userid));
while ($row = $stmt->fetchObject()) {
//use fields like this: $row->fieldname1, $row->fieldname2...
}
$stmt->closeCursor();
On a side note, I would recommend naming explicitely your fields instead of using the * selector in your query.
Hope it helps,
S.