差之間的兩個日期和在輸入顯示它通過使用PHP

Question

可能重複：
How to calculate the difference between two dates using PHP?

我在HTML三個輸入。其中兩個是開始日期和結束日期，第三個是找出它們之間的差異並顯示結果。

這裏是輸入：

<p><span>Start date:</span> <input type="date" required min="2012-01-01" name="start_d" id="start_d" ><span>* Format: YYYY-MM-DD</span><br></p> 
<p><span>End date:</span> <input type="date" required min="2012-01-01" name="end_d" id="end_d" ><span>* Format: YYYY-MM-DD</span><br></p> 
<p><span>Duration :</span><input type="text" required name="duration" id=duration" readonly="readonly"><br></p> 

Answer 1

date('Y-m-d', (strtotime($str_start_date) + round((strtotime($str_end_date) - strtotime($str_start_date))/2))'; 

編輯：

Missunderstood你的問題。雖然你想要這些之間的日期？你想在幾秒鐘內的差異？

round((strtotime($str_end_date) - strtotime($str_start_date))/2) 

Answer 2

在http://php.net/manual/en/function.date-diff.php和How to calculate the difference between two dates using PHP?

Answer 3

$date1 = new DateTime("2011-02-01"); 
$date2 = new DateTime("2012-01-01"); 
$duration = $date1->diff($date2); 
var_dump($duration);