time - PHP get week numbers and dates by year -

i wondering how can week numbers , dates week start , ends on. empty on code, cannot show anything. need website: http://www.epochconverter.com/date-and-time/weeknumbers-by-year.php

i suggest following, change year year 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; } ?>