How to create and call MySQL stores procedures? - php

Question

The table[file_request ] structure:
user_id[INT] file_id[CHAR(10)] all_files
This is the SQL code which work fine in MySQL clien: I am using heidisql
DROP PROCEDURE IF EXISTS check_user_files;
DELIMITER \\
CREATE PROCEDURE check_user_files(IN p_user_id INT,IN p_file_id CHAR(10),IN p_all_files VARCHAR(500))
BEGIN
IF EXISTS(SELECT 1 FROM file_request WHERE user_id = p_user_id AND movie_id = p_file_id) THEN
UPDATE file_request SET `requring_date`=NOW(),`all_files`= p_all_files WHERE `user_id`=p_user_id AND `movie_id`=p_file_id;
ELSE
INSERT INTO file_request (`user_id`,`requring_date`,`movie_id`,`all_files`)
VALUES (p_user_id,NOW(),p_file_id,p_all_files);
END IF;
END \\
DELIMITER ;
CALL check_user_files('23','T40431284','07 08 10 11 13 14');
DELIMITER ;
CALL check_user_files('23','F87951','01 02 03');
And I trying to create and execute the SQL query from PHP [didn't work] :
// create the call procedure statements
foreach($fileData as $key=>$value){
$callSP .= "DELIMITER ; \n
CALL check_user_files('$userID','$key','$value');\n";
}
$insert_file_request_query = "DROP PROCEDURE IF EXISTS check_user_files;
DELIMITER \\\\
CREATE PROCEDURE check_user_files(IN p_user_id INT,IN p_file_id CHAR(10),IN p_all_files VARCHAR(500))
BEGIN
IF EXISTS(SELECT 1 FROM file_request WHERE user_id = p_user_id AND movie_id = p_file_id) THEN
UPDATE file_request SET `requring_date`=NOW(),`all_files`= p_all_files WHERE `user_id`=p_user_id AND `movie_id`=p_file_id;
ELSE
INSERT INTO file_request (`user_id`,`requring_date`,`movie_id`,`all_files`)
VALUES (p_user_id,NOW(),p_file_id,p_all_files);
END IF;
END \\\\
$callSP";
mysqli_query($conn,$insert_file_request_query);
The SQL query which created from PHP didn't work as in the MySQL client!?
So, how can I fix it!?
[update1]
I found that the SQL query must in the special format [ the formate which work fine in the MySQL client] or shouldn't work,I tried to copy and paste the query which echo from the PHP, the query code become one line and couldn't execute in MySQL client,too.
[update2]
The code of create store procedure will work fine when I execute it alone from PHP.I mean,I split the whole process into three parts and execute them one by one.
part1: drop the procedure if it was exists; [using mysqli_query()]
part2: create the procedure;[using mysqli_query()]
part3：call the procedure;[using mysqli_multi_query()]
$insert_file_request_query = '';
foreach($fileData as $key=>$value){
$insert_file_request_query .= "CALL check_save_file_request('$userID','$key','$value');";
}
mysqli_multi_query($conn,$insert_file_request_query);
And my final solution was to create the Store Procedure in MySQL and call it from the PHP.It works fine now.
Thank you very much!!

Answer 1

You can't combine multiple statements in mysqli_query. Split out the definition of the stored procedure from the CALLs to it. If that still fails, we'll need the full and exact error message that you receive.