使用PHP / MySQL从表中替换多个字符串

Question

I have a table called Products that contains Titles of products. Some of these Titles have words I would like to replace. The table contains over 6,000 records. The text strings are found in the Title Column

ID | Title | Description | Price

I have another table called ReplaceText that contains a list of strings I am searching for and new text string. (eg small | tiny) This currently has 102 records.

ID | OldString | NewString

I would like to create a PHP/MySQL script to search the Title field in the Products table for matching words from the 'OldString field in the ReplaceText` table.

I have tried various methods but all can't crack the code. Please help :)

Thank you in advance.

Answer 1

I suggest the following approach, using only SQL queries.

First, create a temporary table ProductsTMP containing only the rows Products with a new Title .

CREATE TEMPORARY TABLE ProductsTMP AS
SELECT p.ID, r.NewString AS Title, p.Description, p.Price
FROM Products p INNER JOIN ReplaceText r ON p.Title = r.OldString;

Then, remove the old rows from the original Products table:

DELETE FROM Products
WHERE ID IN (SELECT ID FROM ProductsTMP);

Finally, add the updated rows from ProductsTMP to the original table Products , and remove the temporary table:

INSERT INTO Products (ID, Title, Description, Price)
SELECT ID, Title, Description, Price FROM ProductsTMP;    
DROP TABLE ProductsTMP;