Convert Mysql procedure into PHP code - php

Question

I have a stored procedure on my Mysql DB, but i need to change it to get it done by PHP.
I've been looking around here and i know that is possible to make a SP from PHP, but it requires Mysqli (i don't have it updated, and updating it is not possible for personal reasons) or at least that was the only way i found to do it (source).
So for me that only have Mysql, it's possible to do it from php? or should i just "translate" the procedure into PHP format? I mean not making a procedure but a function instead (php function), that actually do the same with PHP code (loops, selects, calls and so) but not storing the procedure on the DB.
This is my procedure
DELIMITER //
create procedure autor_products (in id int)
begin
update authors set authors_products=
(SELECT DISTINCT count(products_id)
FROM products
INNER JOIN authors_to_manufacturers as am ON am.manufacturers_id = products.manufacturers_id
WHERE authors_id = id)
WHERE manufacturers_id = id;
end
//
DELIMITER $$
CREATE PROCEDURE authors()
BEGIN
DECLARE a INT Default 0 ;
DECLARE manu_length int;
select max(manufacturers_id) into manu_length from authors;
simple_loop: LOOP
SET a=a+1;
call autor_products(a);
IF a >= manu_length THEN
LEAVE simple_loop;
END IF;
END LOOP simple_loop;
END $$
DELIMITER ;
commit;
I managed to do this, which is "working" for at least one update
<?php
require('includes/configure.php'); //To get the DB name, user and pass
require_once (DIR_FS_INC.'xtc_db_connect.inc.php'); //I use this to connect the DB
$conn = xtc_db_connect() or die('Unable to connect to database server!');
$manu_lenght="select max(manufacturers_id) from authors;";
for ($i = 0;$i<=$manu_lenght;$i++){ //"for" not in use nor not working if i replace 1 for $i
$update= " update authors set products_amount = (SELECT DISTINCT count(products_id)
FROM products
INNER JOIN authors_to_manufacturers as am ON am.manufacturers_id = products.manufacturers_id
WHERE authors_id = 1)
WHERE manufacturers_id = 1;";
} //will only update 1 author with authors_id = 1 so i needed to make a loop, but if i replace 1 for $i. it doesn't update at all
$retval = mysql_query( $update, $conn );
if(! $retval )
{
die('Could not update data: ' . mysql_error());
}
echo "Updated data successfully\n";
?>
How may i use the $i variable instead of a specific number? (so it would update all at once because of the loop)
Edit: My manu_lenght is not working (it doesn't show the result of the select) but i just changed that part into a number and it's still not working, any thoughts?
Edit 2: Why is this code not working? It works if it's only $a=1; but not if i loop or make a bucle of $a.
$a = 1;
do{
$update= " update authors set products_amount = (SELECT DISTINCT count(products_id)
FROM products
INNER JOIN authors_to_manufacturers as am ON am.manufacturers_id = products.manufacturers_id
WHERE authors_id =$a)
WHERE manufacturers_id =$a;";
echo $a;
$a++;
}
while($a <= 10);
What im doing wrong?

Answer 1

After several tries i got what i need.
This is my code:
<?php
require('includes/configure.php');
require_once (DIR_FS_INC.'xtc_db_connect.inc.php');
$conn = xtc_db_connect() or die('Unable to connect to database server!');
//getting the total amount of authors into $manu_lenght variable
$manu_lenght = mysql_query("select max(manufacturers_id) as sum from authors;" );
if(!$manu_lenght){
die("DB query failed : " . mysql_error());
$sum = "";
} //needed to fetch the result of the select query
while ( $result = mysql_fetch_assoc($manu_lenght)){
$sum = $result["sum"];
}
do{
$author_update= " update authors set products_amount = (SELECT DISTINCT count(products_id)
FROM products
INNER JOIN authors_to_manufacturers as am ON am.manufacturers_id = products.manufacturers_id
WHERE authors_id =$a)
WHERE manufacturers_id =$a;";
$a++;
//while was here, so that's why it wasn't working
$ret_author = mysql_query( $author_update, $conn );
}
while($a <= $sum); //now is correct, it sends the query now
if(!$ret_author )
{
die('Could not update data: ' . mysql_error());
}
echo "Updated authors successfully\n";
?>
What i was basically doing wrong is ending the loop too early, and not letting the mysql_query function send the query (update in this case)
Instead of calling the procedure, i did the procedure translation through PHP. Hope this is useful for anyone else.