打开返回到变量

Question

我有以下功能拿到2天之间的天数，不包括周末

function getWorkingDays($startDate, $endDate) 
{ 
    $begin = strtotime($startDate); 
    $end = strtotime($endDate); 
    if ($begin > $end) { 
     echo "startdate is in the future! <br />"; 

     return 0; 
    } else { 
     $no_days = 0; 
     $weekends = 0; 
     while ($begin <= $end) { 
      $no_days++; // no of days in the given interval 
      $what_day = date("N", $begin); 
      if ($what_day > 5) { // 6 and 7 are weekend days 
       $weekends++; 
      }; 
      $begin += 86400; // +1 day 
     }; 
     $working_days = $no_days - $weekends; 

     return $working_days; 


    } 
} 

这工作得很好，但我要如何返回到一个变量来呼应/使用？

Answer 1

你把它保存到某个变量，然后你可以把它打印出来：

$workingDays = getWorkingDays("some date", "another date"); 
echo $workingDays; 

或者，如果你只是想用它来打印出来，你可以离开了变量：

echo getWorkingDays("some date", "another date");