PHP get date between a date range and separate by week - php

Question

How can I create a function that can return accurate start and end date within date range of given date that separate by week.
For example, a date range is given,
$startDate = '2022-08-05';
$endDate = '2022-08-16';
(2022-08-01 is the first day of the week but I want the data return start from the date that user given so do the end date)
So the output should be like this:
2022-08-05 to 2022-08-07
2022-08-08 to 2022-08-14
2022-08-15 to 2022-08-16
data
data
data
My problem is function I found cannot get data start from that date that user given but start from the first day of week and I have no idea how to modify it or create a new function. Any help is appreciate.
function rangeWeek ($datestr) {
date_default_timezone_set (date_default_timezone_get());
$dt = strtotime ($datestr);
return array (
"start" => date ('N', $dt) == 1 ? date ('Y-m-d', $dt) : date ('Y-m-d', strtotime ('last monday', $dt)),
"end" => date('N', $dt) == 7 ? date ('Y-m-d', $dt) : date ('Y-m-d', strtotime ('next sunday', $dt))
);
}
If I set the start date to '2022-08-05' then the output will be start from the first day of the week, how to let it start from '2022-08-05'?
print_r (rangeWeek('2022-08-05'));//output = Array ( [start] => 2022-08-01 [end] => 2022-08-07 )

Answer 1

You can iterate from start to end date and check the week for each day. So you know the week begin and end.
Example
function rangeWeek(string $start, string $end): array
{
$start = new DateTime($start);
$end = new DateTime($end);
$interval = new DateInterval('P1D');
$period = new DatePeriod($start, $interval, $end);
$weeks = [];
$oldWeek = null;
$weekStart = null;
foreach ($period as $date) {
$week = $date->format('W');
if ($week !== $oldWeek) {
if (null === $weekStart) {
$oldWeek = $week;
$weekStart = $date->format('Y-m-d');
} else {
$weeks[] = ['start' => $weekStart, 'end' => $date->format('Y-m-d'), 'week' => $week];
$weekStart = null;
}
continue;
}
}
$weeks[] = ['start' => $weekStart, 'end' => $end->format('Y-m-d'), 'week' => $week];
return $weeks;
}
$startDate = '2022-08-05';
$endDate = '2022-08-20';
$weeks = rangeWeek($startDate, $endDate);
print_r($weeks);
Output
Array
(
[0] => Array
(
[start] => 2022-08-05
[end] => 2022-08-08
[week] => 32
)
[1] => Array
(
[start] => 2022-08-09
[end] => 2022-08-15
[week] => 33
)
[2] => Array
(
[start] => 2022-08-16
[end] => 2022-08-20
[week] => 33
)
)