// PHP program to display sunday as first day of a week

// l will display the name of the day
// d, m and Y will display the day, month and year respectively

// For current week the time-string will be "sunday -1 week"
// here -1 denotes last week
$firstday = date('l - d/m/Y', strtotime("sunday -1 week"));
echo "First day of this week: ", $firstday, "n";

// For previous week the time-string wil be "sunday -2 week"
// here -2 denotes week before last week
$firstday = date('l - d/m/Y', strtotime("sunday -2 week"));
echo "First day of last week: ", $firstday, "n";

// For next week the time-string wil be "sunday 0 week"
// here 0 denotes this week
$firstday = date('l - d/m/Y', strtotime("sunday 0 week"));
echo "First day of next week: ", $firstday, "n";

// For week after next week the time-string wil be "sunday 1 week"
// here 1 denotes next week
$firstday = date('l - d/m/Y', strtotime("sunday 1 week"));
echo "First day of week after next week : ", $firstday;