計算兩個日期之間的小時數 - 不包括週末

Question

使用此代碼：Calculate number of hours between 2 dates in PHP我想計算兩個時間戳之間的小時數。

我現在需要的是能夠從這個計數中排除週末時間嗎？

例如對於以下2個時間戳，我期望小時數爲24而不是72.

$datetime1 = "2012-07-20 12:00:00"; 
$datetime2 = "2012-07-23 12:00:00"; 

Answer 1

下面的代碼應該可以工作。我假設$ datetime1總是小於$ datetime2。

$datetime1 = "2012-07-20 12:00:00"; 
$datetime2 = "2012-07-23 12:00:00"; 

$timestamp1 = strtotime($datetime1); 
$timestamp2 = strtotime($datetime2); 

$weekend = array(0, 6); 

if(in_array(date("w", $timestamp1), $weekend) || in_array(date("w", $timestamp2), $weekend)) 
{ 
    //one of the dates is weekend, return 0? 
    return 0; 
} 

$diff = $timestamp2 - $timestamp1; 
$one_day = 60 * 60 * 24; //number of seconds in the day 

if($diff < $one_day) 
{ 
    return floor($diff/3600); 
} 

$days_between = floor($diff/$one_day); 
$remove_days = 0; 

for($i = 1; $i <= $days_between; $i++) 
{ 
    $next_day = $timestamp1 + ($i * $one_day); 
    if(in_array(date("w", $next_day), $weekend)) 
    { 
     $remove_days++; 
    } 
} 

return floor(($diff - ($remove_days * $one_day))/3600);