Skip the week range from months range in PHP - php

Question

I just want to skip the given week from a date range(month range).
For example, I have a date range between 2020-04-01 to 2020-04-30. I just have to skip the alternate week from this date range which is 2020-04-08 to 2020-04-14 and 2020-04-22 to 2020-04-28. So my final output will be
[0] => 2020-04-01
[1] => 2020-04-02
[2] => 2020-04-03
[3] => 2020-04-04
[4] => 2020-04-05
[5] => 2020-04-06
[6] => 2020-04-07
[7] => 2020-04-15
[8] => 2020-04-16
[9] => 2020-04-17
[10] => 2020-04-18
[11] => 2020-04-19
[12] => 2020-04-20
[13] => 2020-04-21
[14] => 2020-04-29
[15] => 2020-04-30
These skipping should be dynamic like skip every second week, third week and so on...
I hope you understand what I want to say

Answer 1

Maybe something like this:
You only need to pass in date for first of month and array of weeks to exclude.
function excludeWeeks($dateStart, $excludeWeeks) {
$finalDates = [];
$date = new DateTime($dateStart);
$daysInMonth = date("t", strtotime($dateStart));;
$firstOfMonth = strtotime(date("Y-m-01", strtotime($date->format('Y-m-d'))));
$modifiedDate = $date->format('Y-m-d');
for ($i = 0; $i <= $daysInMonth; $i++) {
if($i > 0) {
$modifiedDate = $date->modify('+ 1 day')->format('Y-m-d');
}
$weekNumber = intval(date("W", strtotime($modifiedDate))) - intval(date("W", $firstOfMonth)) + 1;
if(!in_array($weekNumber, $excludeWeeks)) {
$finalDates[] = $modifiedDate;
}
}
print_r($finalDates);
}
excludeWeeks('2020-04-1', ["3"]);
Will print our:
Array ( [0] => 2020-04-01 [1] => 2020-04-02 [2] => 2020-04-03 [3] => 2020-04-04 [4] => 2020-04-05 [5] => 2020-04-06 [6] => 2020-04-07 [7] => 2020-04-08 [8] => 2020-04-09 [9] => 2020-04-10 [10] => 2020-04-11 [11] => 2020-04-12 [12] => 2020-04-20 [13] => 2020-04-21 [14] => 2020-04-22 [15] => 2020-04-23 [16] => 2020-04-24 [17] => 2020-04-25 [18] => 2020-04-26 [19] => 2020-04-27 [20] => 2020-04-28 [21] => 2020-04-29 [22] => 2020-04-30 [23] => 2020-05-01 )
Based on your comment, this is what you can do:
function excludeWeeks($dateStart, $dateEnd, $excludeWeeks) {
$totalDays = strtotime($dateEnd) - strtotime($dateStart);
$totalDays = round($totalDays / (60 * 60 * 24));
$finalDates = [];
$dateStart = new DateTime($dateStart);
$modifiedDate = $dateStart->format('Y-m-d');
for ($i = 0; $i < $totalDays; $i++) {
if($i > 0) {
$modifiedDate = $dateStart->modify('+ 1 day')->format('Y-m-d');
}
$weekNumber = (int)$i/7 + 1;
if(!in_array( (int)$weekNumber, $excludeWeeks)) {
$finalDates[] = $modifiedDate;
}
}
print("<pre>".print_r($finalDates,true)."</pre>");
}
excludeWeeks('2020-04-1','2020-06-18', ["2","4","6","8","10"]);
This will exclude all weeks (not accoring to calendar, but as you said, 7 days) and print something like:
Array
(
[0] => 2020-04-01
[1] => 2020-04-02
[2] => 2020-04-03
[3] => 2020-04-04
[4] => 2020-04-05
[5] => 2020-04-06
[6] => 2020-04-07
[7] => 2020-04-15
[8] => 2020-04-16
[9] => 2020-04-17
[10] => 2020-04-18
[11] => 2020-04-19
[12] => 2020-04-20
[13] => 2020-04-21
[14] => 2020-04-29
[15] => 2020-04-30
[16] => 2020-05-01
[17] => 2020-05-02
[18] => 2020-05-03
[19] => 2020-05-04
[20] => 2020-05-05
[21] => 2020-05-13
[22] => 2020-05-14
[23] => 2020-05-15
[24] => 2020-05-16
[25] => 2020-05-17
[26] => 2020-05-18
[27] => 2020-05-19
[28] => 2020-05-27
[29] => 2020-05-28
[30] => 2020-05-29
[31] => 2020-05-30
[32] => 2020-05-31
[33] => 2020-06-01
[34] => 2020-06-02
[35] => 2020-06-10
[36] => 2020-06-11
[37] => 2020-06-12
[38] => 2020-06-13
[39] => 2020-06-14
[40] => 2020-06-15
[41] => 2020-06-16
[42] => 2020-06-17
)
You can use whatever startTime and endTime.

Answer 2

The starting parameters are at beggining of code
$startData = "2020-04-01";
$endData = "2020-04-30";
$skipData = "2020-04-08"; // skip one week starting from this data
$everyNumberWeeks = 1;
$dateTimestampStartData = strtotime($startData);
$dateTimestampEndData = strtotime($endData);
$dataTimestampSkipData = strtotime($skipData);
$data = $startData;
$dateTimestampData = strtotime($data);
$skiping = 0;$show=true;
while ($dateTimestampData <= $dateTimestampEndData)
{
$data = date("Y-m-d", $dateTimestampData);
$dateTimestampData = strtotime($data) + 60*60*24;
if ($dateTimestampData > $dataTimestampSkipData)
{
if (($skiping % (7*$everyNumberWeeks))==0)
{
$show = ! $show;
$skiping = 0;
}
$skiping++;
}
if ($show) echo "$data<BR>";
}