Get 3 future day dates with php - php

Question

I want to creat a table for listing 3 future days with day name and date for my online shopping.
I try this code but it doesn't work correctly :
function week_from_monday($date) {
// Assuming $date is in format DD-MM-YYYY
list($day, $month, $year) = explode("-", $_REQUEST["date"]);
// Get the weekday of the given date
$wkday = date('l',mktime('0','0','0', $month, $day, $year));
switch($wkday) {
case 'Monday': $numDaysToMon = 0; break;
case 'Tuesday': $numDaysToMon = 1; break;
case 'Wednesday': $numDaysToMon = 2; break;
case 'Thursday': $numDaysToMon = 3; break;
case 'Friday': $numDaysToMon = 4; break;
case 'Saturday': $numDaysToMon = 5; break;
case 'Sunday': $numDaysToMon = 6; break;
}
// Timestamp of the monday for that week
$monday = mktime('0','0','0', $month, $day-$numDaysToMon, $year);
$seconds_in_a_day = 86400;
// Get date for 7 days from Monday (inclusive)
for($i=0; $i<7; $i++)
{
$dates[$i] = date('Y-m-d',$monday+($seconds_in_a_day*$i));
}
return $dates;
}
$ddate = date('Y-m-d');
$date = new DateTime($ddate);
$week = $date->format("W");
$week_number = $week;
$year = date('Y');
for($day=5; $day<=30; $day++)
{
echo date('m/d/Y', strtotime($year."W".$week_number.$day))."\n";
}
Here is my code but I want to get this :
today : Sun
Monday 30
Tuesday 31
Wednesday 1

Answer 1

To get the next 3 upcoming dates, you can simplify this a lot using date and strotime.
Try this code:
function nextThreeDays($date) {
$dateTs = strtotime($date);
// Dont need this, but I leave it for educational purpose:
// $day_of_week = date("N", $dateTs) - 1; // Mon=0 Tue=1 Wed=2 ...
// $monday_time = strtotime(date("d.m.Y H:i:s", $dateTs) . " -".$day_of_week." days"); // timestamp of monday of week of $date
for($i = 1; $i <= 3; $i++) {
echo date('m/d/Y', strtotime(date("d.m.Y H:i:s", $dateTs) . " +".$i." days"))."\n";
}
}
// Put in "today : Sun"
nextThreeDays("29.01.2023");
Outputs:
// Monday 30 Tuesday 31 Wednesday 1
01/30/2023
01/31/2023
02/01/2023