How print all the weeks in an year (or first monday of year)

问题

How print all the weeks which start with monday and end with sunday.. like below ..using Zend_date

1   04-Jan-2010-10-Jan-2010  
2   11-Jan-2010-17-Jan-2010 
3   18-Jan-2010-24-Jan-2010 

回答1:

Start by finding the first monday, then you can just add 1 week until the year increments.

<?php
define('NL', "\n");

$year           = 2010;
$firstDayOfYear = mktime(0, 0, 0, 1, 1, $year);
$nextMonday     = strtotime('monday', $firstDayOfYear);
$nextSunday     = strtotime('sunday', $nextMonday);

while (date('Y', $nextMonday) == $year) {
    echo date('c', $nextMonday), '-', date('c', $nextSunday), NL;

    $nextMonday = strtotime('+1 week', $nextMonday);
    $nextSunday = strtotime('+1 week', $nextSunday);
}

回答2:

Getting first monday of the year:

$year = 2010;

$date = new Zend_Date();
$date->set("01.01.$year", Zend_Date::DATES);

while(true)
{
   if($date->equals('Mon', Zend_Date::MONTH_NAME_SHORT))
   {
      //It's monday - print date
      break;
   }
   else
   {
       //It's not monday - move to the next day
       $date->add('1', Zend_Date::DAY_SHORT);
   }

}

来源：https://stackoverflow.com/questions/2099522/how-print-all-the-weeks-in-an-year-or-first-monday-of-year