How can I select rows from a table for specific time ago in php?

Question

I want select all rows from table where added date< today-15 days in php or sql.

Example:

SELECT  * FROM order WHERE date_added< (now()-15days).

How can I do this?

Answer 1

You might want to use date and strtotime function

$fiftendaysago = date('Ymd',strtotime("-15 days"));

And now the query

$sql = "SELECT  * FROM order WHERE date_added< '$fiftendayago' ";

Answer 2

Build the date in php

<?php

$DateString = date('Ymd', strtotime('-15 days'));

$sql = "SELECT  * FROM order WHERE date_added< '$DateString' ";

//Execute your SQL and do your stuff.

Answer 3

i usually use a date_diff function

so the sql query will look like

SELECT  * FROM order WHERE date_diff(now(), date_added) < 15 ;

the function it self

CREATE OR REPLACE FUNCTION date_diff(date, date)
 RETURNS integer AS
 $BODY$
 select $1-$2; $BODY$
LANGUAGE 'sql' VOLATILE
COST 100;

the database will do the calculation. you can pass the interval of the date using a variable.