How to find the start and end date of a previous month in PHP [duplicate]

Question

Possible Duplicate:
Timestamps of start and end of month

I want to find the Start and end Date of the previous month in php (ie) i want to find the last month start and end date of the current month

Answer 1

I guess this would do

echo date('Y-m-d', strtotime('first day of last month'));

echo "<br/>";

echo date('Y-m-d', strtotime('last day of last month'));

Answer 2

echo date('m-01',strtotime('last month')) . '<br/>';
echo date('m-t',strtotime('last month')) . '<br/>';