How to iterate day in php? - php

Question

I need to get the next 7 (or more) dates except sunday. Firstly i did it like
$end_date = new DateTime();
$end_date->add(new DateInterval('P7D'));
$period = new DatePeriod(
new DateTime(),
new DateInterval('P1D'),
$end_date
);
And after checked $period in foreach. But then i noticed that if i remove Sunday i need to add one more day to the end and this is each time when Sunday is... Is there any way to do it?

Answer 1

$start = new DateTime('');
$end = new DateTime('+7 days');
$interval = new DateInterval('P1D');
$period = new DatePeriod($start, $interval, $end);
foreach ($period as $dt) {
if ($dt->format("N") === 7) {
$end->add(new DateInterval('P1D'));
}
else {
echo $dt->format("l Y-m-d") . PHP_EOL;
}
}
See it in action

Answer 2

I'm a fan of using iterators, to keep the actual loop as simple as possible.
$days_wanted = 7;
$base_period = new DatePeriod(
new DateTime(),
new DateInterval('P1D'),
ceil($days_wanted * (8 / 7)) // Enough recurrences to exclude Sundays
);
// PHP >= 5.4.0 (lower versions can have their own FilterIterator here)
$no_sundays = new CallbackFilterIterator(
new IteratorIterator($base_period),
function ($date) {
return $date->format('D') !== 'Sun';
}
);
$period_without_sundays = new LimitIterator($no_sundays, 0, $days_wanted);
foreach ($period_without_sundays as $day) {
echo $day->format('D Y-m-d') . PHP_EOL;
}

Answer 3

You cannot remove days from a DatePeriod, but you can simply keep a count of non-Sundays and keep iterating until you have accumulated 7 of them:
$date = new DateTime();
for ($days = 0; $days < 7; $date->modify('+1 day')) {
if ($date->format('w') == 0) {
// it's a Sunday, skip it
continue;
}
++$days;
echo $date->format('Y-m-d')."\n";
}

Answer 4

You can try using UNIX time, adding day and if day is Sunday, add another one.
First day of your list will be eg. today at 12:00. Than you add 24 * 60 * 60 to get next day, and so on. Convert UNIX to day is simple, use date() function.
$actDay = time();
$daysCount = 0;
while(true)
{
if (date("D", $actDay) != "Sun")
{
//do something with day
$daysCount++;
}
if ($daysCount >= LIMIT) break;
$actDay += 24 * 60 * 60;
}