How to make a for loop for some month - php

Question

I want to make for loop in php pdo that will create me an json data but loop must be for an month.
I write this:
try {
for ($i=1; $i<=30; $i++) {
$temp = array();
$temp['ID'] = $i;
$output['data'][] = $temp;
}
$jsonTable = json_encode($output);
SO this return me 30 rows, for 30 days. Now I want to create a range etc. to make me a rows from 01.02.2014 to rest of month 28/29.02.2014 so February ...
How to make this possible? Some ideas?

Answer 1

If you can't read the manual for yourself:
$dateString = '01.02.2014';
$dt = new DateTime($dateString);
$daysInMonth = $dt->format('t');
will give you the number of days in the month specified in $dateString
One way to loop through the days in a month:
$dateString = '01.02.2014';
$startDate = new DateTime($dateString);
$period = new DateInterval('P1M');
$endDate = clone $startDate;
$endDate->add($period);
$dayPeriod = new DateInterval('P1D');
while ($startDate < $endDate) {
echo $startDate->format('Y-m-d'), PHP_EOL;
$startDate->add($dayPeriod);
}
Another way to get that list of dates for a month
$dateString = '01.02.2014';
$startDate = new DateTime($dateString);
$period = new DateInterval('P1M');
$endDate = clone $startDate;
$endDate->add($period);
$interval = new DateInterval('P1D');
$daterange = new DatePeriod($startDate, $interval ,$endDate);
foreach($daterange as $date){
echo $date->format("Y-m-d") . PHP_EOL;
}