How to search with keywords? (PHP)

Question

I was wondering how to generate a search SQL query for keywords:

I know:

SELECT * FROM table WHERE keyword LIKE %keyword%;

But how to work with multiple keywords.

I hope that makes sense...

Answer 1

SELECT * 
FROM `table`
WHERE keyword LIKE '%1%'
OR keyword LIKE '%2%'
OR keyword LIKE '%3%'

If I understand you right, this is what you're looking for

Answer 2

Please check with below codes:

You can use FULL TEXT SEARCH

SELECT col1 FROM table_name
WHERE MATCH (col1, col2, col3)
AGAINST ('keywords');

For this, you need to apply fulltext index on columns in which you want to search.

You can use IN operator too like -

SELECT col1 FROM table_name
WHERE col1 IN (keyword1, keyword2, keyword3, ...);

Answer 3

You can use a combination of percent signs and underscore wildcards

SELECT * FROM table WHERE keyword LIKE "%keywordA_keywordB%";

Or use CONTAINS and do something like:

SELECT * FROM table 
    WHERE keyword CONTAINS "%keywordA%" AND keyword CONTAINS "%keywordB%";