


We can create a function which accepts a date value as parameter and returns the difference of year, month and day as shown below
mysql> CREATE FUNCTION date_difference(Date1 DATE, date2 DATE) RETURNS VARCHAR(30) -> RETURN CONCAT( -> @years := TIMESTAMPDIFF(YEAR, date1, date2),IF (@years = 1, ' year, ', ' years, '), -> @months := TIMESTAMPDIFF(MONTH, DATE_ADD(date1, INTERVAL @years YEAR), date2),IF (@months = 1, ' month, ', ' months, '), -> @days := TIMESTAMPDIFF(DAY, DATE_ADD(date1, INTERVAL @years * 12 + @months MONTH), date2),IF (@days = 1, ' day', ' days')) ; Query OK, 0 rows affected (0.00 sec)
Now, add the date value Passed as argument to function date_difference
mysql> Select date_difference('2015-11-16','2016-12-17') AS Difference; +------------------------+ | Difference | +------------------------+ | 1 year, 1 month, 1 day | +------------------------+ 1 row in set (0.00 sec)
The above result set gives the difference between the two specified dates as argument to the function.
The above is the detailed content of How can we return the difference in year, month and day between two date values using a function?. For more information, please follow other related articles on the PHP Chinese website!

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