Help with php time

[gibigbig]

My project requires me to make sql queries based on the month you are currently in as well as the subsequent months months before this.

 

Example:

 

to get the month number in php you use

 

$month_num = date("n");

 

and for the month before you use:

 

$month_before - date("n") - 1;

 

what i need is a way of converting the $month_before to epoch timestamps.

so i can do make a sql query for all user's activity in that month. Please help

[teynon]

Example:

 

echo date("U", strtotime("Today -1 month"));

 

http://php.net/manual/en/function.date.php