我如何一起使用REGEXP + mysql + procedure

Question

I am creating function to find category by id. Because of categories values are stored in mysql database with php serialize and encoded json result looks like this :

"a:2:{i:0;s:1:\"1\";i:1;s:2:\"50\";}"

I can use simple mysql statement and that's working fine with REGEXP :

SELECT * FROM provider_cat_subcat WHERE category_id REGEXP '\\"\50.\\"'

But i want to create procedure so i can put variable value. So when i am trying this :

WHERE provider_cat_subcat.category_id REGEXP '\\"' + cat_id + '.\"'

it's not working i think because REGEXP. Please help me to know how i can join variable with REGEXP or there's why i can use php.

Full procedure:

BEGIN 
   SELECT * FROM provider_cat_subcat 
   WHERE provider_cat_subcat.category_id REGEXP '\\"' + cat_id + '.\"'
   AND provider_cat_subcat.subcategory_id REGEXP '\\"' + subcat_id + '.\"'; 
END

Thanks

Answer 1

Could you try that please ?

DELIMITER $$
CREATE PROCEDURE cat_regexp_search(IN cat_id int(11), IN sub_cat_id int(11))
BEGIN
  SET @cat_id    := cat_id;
  SET @sub_cat_id := sub_cat_id;
   SELECT * FROM provider_cat_subcat 
   WHERE provider_cat_subcat.category_id REGEXP CONCAT('\\"', @cat_id, '.\\"')
   AND provider_cat_subcat.subcategory_id REGEXP CONCAT('\\"', @sub_cat_id, '.\\"'); 
END
$$
DELIMITER ;

You should call this script as CALL cat_regexp_search(1, 3); When do you want to edit then call as

DROP PROCEDURE IF EXISTS cat_regexp_search;

then execute create script again.

Answer 2

BEGIN 
SELECT * FROM provider_cat_subcat 
   WHERE provider_cat_subcat.category_id REGEXP '^1[() -]*[[:digit:]]{3}[() -]*[[:digit:]]{3}[() -]*[[:digit:]]{4}$';
AND provider_cat_subcat.subcategory_id REGEXP '^1[() -]*[[:digit:]]{3}[() -]*[[:digit:]]{3}[() -]*[[:digit:]]{4}$';
END

try without slash