Calendar Input with Php - php

Question

I have a problem that I don't quite understand how to solve, and I came here to see if you can help me.
The thing is that I have the calendar of
and I need to block intermediate dates
example of this would be:
dates from 2022/11/01 to 2022/11/10 and I have to discard the dates from 2022/11/02 to 2022/11/05 and 2022/11/07 to 2022/11/09
and what it should show is in a single input the remaining dates
I mean the dates
2022/11/01,2022/11/06,2022/11/10
<?php
$reservSQL = new ReservSQL();
$reservList = $reservSQL->GetReservbyIdKeeper($idKeeper);
if ($reservList == null) {
?>
<td>
<input type="date" name="dateStart" min="<?php echo $keeper->getTypeUserKeeper()->getDateStart(); ?>" max="<?php echo $keeper->getTypeUserKeeper()->getDateFinish(); ?>" placeholder="START" required>
</td>
<td>
<input type="date" name="dateFinish" min="<?php echo date('Y-m-d', strtotime($keeper->getTypeUserKeeper()->getDateStart() . "+1 day")); ?>" max="<?php echo $keeper->getTypeUserKeeper()->getDateFinish(); ?>" placeholder="FINISH" required>
</td>
<?php
}
elseif($reservList!=null){
$reserv=new Reserv();
foreach ($reservList as $reserv) {}
?>
<tbody>
<td>
<input type="date" name="dateStart"
min="<?php echo date('Y-m-d', strtotime($reserv->getDateFinish() . "+1 day")); ?>"
max="<?php echo $keeper->getTypeUserKeeper()->getDateFinish(); ?>"
placeholder="START" required>
</td>
<td>
<input type="date" name="dateFinish"
min="<?php echo date('Y-m-d', strtotime($reserv->getDateFinish() . "+1 day")); ?>"
max="<?php echo $keeper->getTypeUserKeeper()->getDateFinish(); ?>" placeholder="FINISH" required>
</td>
</tbody>
<?php
}
?>
The thing is that I receive 2 date arrays and I try to get the dates that are reserved using min and max, it gets complicated because it reaches a point where the logic does not do what I want.
I hope you can help me.

Answer 1

I know, I should put more time in programming in PHP, so please find a way to improve this (incomplete) code:
$dates = ['2022/11/01','2022/11/02','2022/11/03','2022/11/04','2022/11/05','2022/11/06','2022/11/07','2022/11/08','2022/11/09','2022/11/10'];
$skip1 = ['2022/11/02','2022/11/05'];
$skip2 = ['2022/11/07','2022/11/09'];
$i = new DateInterval("P1D");
$d = $skip1[0];
while ($d<=$skip1[1]) {
$a=array_search($d,$dates);
unset($dates[$a]);
$t = date_create_from_format('Y/m/d', $d);
print $t->format('Y/m/d')."\n";
date_add($t,date_interval_create_from_date_string("1 days"));
$d = date_format($t,"Y/m/d");
}
var_dump($dates);
When $skip1 contain a start- and end-date, this code will delete that range from $dates. The output:
array(6) {
[0] =>
string(10) "2022/11/01"
[5] =>
string(10) "2022/11/06"
[6] =>
string(10) "2022/11/07"
[7] =>
string(10) "2022/11/08"
[8] =>
string(10) "2022/11/09"
[9] =>
string(10) "2022/11/10"
}
The code should be improved to repeat the step using $skip2, and from the code you will see that I am NOT experienced in PHP.