Cake\Chronos\ChronosInterface::subMonth PHP Method

subMonth() public method

When adding or subtracting months, if the resulting time is a date that does not exist, the result of this operation will always be the last day of the intended month. ### Example: (new Chronos('2015-03-01'))->subMonth(); // Results in 2015-02-01 (new Chronos('2015-03-31'))->subMonth(); // Results in 2015-02-28

public subMonth ( integer $value = 1 ) : static
$value	integer	The number of months to remove.
return	static