Answers for "php date format get total day in date"

php date plus days

<?php 
// PHP program to add days to $Date 
  
// Declare a date 
$date = "2019-05-10"; 
  
// Add days to date and display it 
echo date('Y-m-d', strtotime($date. ' + 10 days')); 
  
?>

php get date from day of year

// This should get you a DateTime object from the date and year.
function getDateFromDay($dayOfYear, $year) {
  $date = DateTime::createFromFormat('z Y', strval($dayOfYear) . ' ' . strval($year));
  return $date;
}

// This should get you the day of the year and the year in a string.
date('z Y', strtotime('21 oct 2012'));