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  1. <?php
  2. function get_next_contest_date($current_date) {
  3. 	$current_date_obj = new DateTime($current_date);
  4.  
  5. 	$year = $current_date_obj->format("Y");
  6. 	$first_day_of_year = date('D', strtotime("$year-01-01"));
  7.  
  8. 	$week = $current_date_obj->format("W");
  9. 	$contest_week = $week;
  10.  
  11. 	if($first_day_of_year !== 'Mon') {
  12. 		$contest_week--;
  13. 	}
  14.  
  15. 	$end_date_obj = new DateTime();
  16.  
  17. 	if($contest_week & 1) {
  18. 		$end_date_obj->setISODate($year, $week + 2);
  19. 	} else {
  20. 		$end_date_obj->setISODate($year, $week + 1);
  21. 	}
  22.  
  23. 	return $end_date_obj->format('Y-m-d');
  24. }
  25.  
  26. echo get_next_contest_date('2014-01-11') . "\n";
  27. echo get_next_contest_date('2014-02-01') . "\n";
  28. echo get_next_contest_date('2014-03-30') . "\n";
  29. echo get_next_contest_date('2014-03-31') . "\n";
Success #stdin #stdout 0.03s 20568KB
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2014-01-20
2014-02-03
2014-03-31
2014-04-14
https://ideone.com/Kv74zD
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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