Get 1st day of next month [duplicate]

Question

Possible Duplicate:
how to find first day of the next month and remain days to this date with php

I have this to get 1st day of current month

$_SERVER['dataInicio'] = date('Y') . "-" . date('m') . "-" . "1";

I need something similar to get 1st day of NEXT month

Answer 1

$date = new DateTime('now');

$date->modify('first day of next month');
echo $date->format('D') . '\n';

$date->modify('first day of this month');
echo $date->format('D') . '\n';