Question

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count date difference in hours using php and mysql

I have a MySQL table, in which there’s a column some_column. This column is set as datetime, and when it’s updated it’s updated as NOW().

What I want to do is query the db, that some_column‘s value, and check the time difference between whatever is in there and the time it is when querying. I want to see if more than 2 hours has passed.

How do I do that with PHP ? Or do I do that with MySQL ?

Answer 1

SELECT IF(TIMEDIFF(NOW(),`some_column`) > '02:00:00',1,0) FROM `table`

Or, if you’re trying to return rows that were updated over two hours ago:

SELECT * FROM `table` WHERE `some_column` < DATE_ADD(NOW(),INTERVAL -2 HOUR)