Online PHP editor | rfc for AZX0E

@ 2022-09-07T08:47:41Z

<?php

 /**
  * Add days without specific days of the week
  * 
  * @param DateTime $startDate      start Date
  * @param int $days                number of days
  * @param array $withoutDays       array with elements "Mon", "Tue", "Wed", "Thu", "Fri", "Sat","Sun"
  * @return DateTime 
  */ 
function addDaysWithout(DateTime $startDate ,int $days, array $withoutDays = []) : DateTime
{
  //validate $withoutDays
  $validWeekDays = 7 - count($withoutDays);
  $validIdentifiers = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat","Sun"];
  if($validWeekDays <= 0 OR
    $withoutDays != array_intersect($withoutDays,$validIdentifiers)){
      $msg = 'Invalid Argument "'.implode(',',$withoutDays).'" in withoutDays';
      throw new \InvalidArgumentException($msg); 
  } 
  $start = clone $startDate;
  $fullWeeks = (int)($days/$validWeekDays)-1;
  if($fullWeeks > 0){
    $start ->modify($fullWeeks.' weeks');
    $days -= $fullWeeks * $validWeekDays;
  }
  while($days){
    $start->modify('+1 Day');
    if(!in_array($start->format('D'),$withoutDays)){
      --$days;
    }
  }
  return $start;
}

$start = date_create('2022-09-05'); 
$dt = addDaysWithout($start,30,["Sun"]);
var_dump($dt); 
//object(DateTime)#3 (3) { ["date"]=> string(26) "2022-10-10 00:00:00.000000"

$start = date_create('2022-09-05'); 
$dt = addDaysWithout($start,30,["Mon","Sun"]);
var_dump($dt); 
//object(DateTime)#3 (3) { ["date"]=> string(26) "2022-10-15

Output for git.master, git.master_jit, rfc.property-hooks: object(DateTime)#2 (3) { ["date"]=> string(26) "2022-10-10 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#1 (3) { ["date"]=> string(26) "2022-10-15 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" }

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