PHP按年获取周数和日期[关闭]

Question

I was wondering how i can get all week numbers and dates where the week start and ends on. I am completely empty on the code, so I cannot show you anything. I need to get something like this website: http://www.epochconverter.com/date-and-time/weeknumbers-by-year.php

Answer 1

I would suggest the following, just change the year to any year you like.

<?php

$year = 2014;

$weeks = getIsoWeeksInYear($year);

for($x=1; $x<=$weeks; $x++){
    $dates = getStartAndEndDate($x, $year);
    echo $x . " - " . $dates['week_start'] . ' - ' . $dates['week_end'] . "<br>";
}

function getIsoWeeksInYear($year) {
    $date = new DateTime;
    $date->setISODate($year, 53);
    return ($date->format("W") === "53" ? 53 : 52);
}

function getStartAndEndDate($week, $year) {
  $dto = new DateTime();
  $ret['week_start'] = $dto->setISODate($year, $week)->format('Y-m-d');
  $ret['week_end'] = $dto->modify('+6 days')->format('Y-m-d');
  return $ret;
}
?>