推薦使用：mktime（）：該is_dst參數已被棄用

Question

標準功能：（見codepad）

<?php 

$start_time_o = "18:00"; 
$end_time_o = date("H:i"); 

function get_time_difference(){ 

    global $start_time_o, $end_time_o; 

    $start_time = explode(":", $start_time_o); 
    $end_time = explode(":", $end_time_o); 

    $start_time_stamp = mktime($start_time[0], $start_time[1], 0, 0, 0, 0); 
    $end_time_stamp = mktime($end_time[0], $end_time[1], 0, 0, 0, 0); 

    $time_difference = $end_time_stamp - $start_time_stamp; 

    return gmdate("H:i", $time_difference); 
} 

echo get_time_difference(); 

?> 

修正函數：（見codepad）

<?php 

$start_time_o = "18:00:01"; 
$end_time_o = date("H:i:s"); 

function get_time_difference(){ 

    global $start_time_o, $end_time_o; 

    $start_time = explode(":", $start_time_o); 
    $end_time = explode(":", $end_time_o); 

    $start_time_stamp = mktime($start_time[0], $start_time[1], $start_time[2], 0, 0, 0, 0); 
    $end_time_stamp = mktime($end_time[0], $end_time[1], $end_time[2], 0, 0, 0, 0); 

    $time_difference = $end_time_stamp - $start_time_stamp; 

    return gmdate("H:i:s", $time_difference); 
} 

echo get_time_difference(); 

?> 

第一功能沒有任何錯誤或通知。

修改函數給出了消息：

Deprecated: mktime(): The is_dst parameter is deprecated in C:\xampp\htdocs\index.php on line 13 
Deprecated: mktime(): The is_dst parameter is deprecated in C:\xampp\htdocs\index.php on line 14 

我不知道爲什麼，我只在修改函數接收消息？ 這裏有什麼問題？

Answer 1

使用strtotime

像

$someString = '10/10/2012 4:34 pm'; 
date_default_timezone_set('American/New_York'); 
$timestamp = strtotime($someString); 
echo date('Y/m/d H:i:s', $timestamp); 

Answer 2

您正在使用的mktime()一個函數的參數太多。刪除零點之一，像這樣：

$start_time_stamp = mktime($start_time[0], $start_time[1], $start_time[2], 0, 0, 0); 
$end_time_stamp = mktime($end_time[0], $end_time[1], $end_time[2], 0, 0, 0); 

這是什麼原因造成您的問題，但是作爲@NullPointer已經指出了他的答案，沒有達到這個一個更有效和更好的方式。用他的解決方案！

Answer 3

如果你想使用更簡單的方式做到這一點嘗試使用DateTime::diff

<?php 
$datetime1 = new DateTime('18:00:01'); 
$datetime2 = new DateTime(); 
$interval = $datetime1->diff($datetime2); 
echo $interval->format('H:i:s'); 
?> 

這是作爲一個函數，它可以使你更容易使用：

<?php 
function diff($first_datetime, $second_datetime = "now") 
{ 
    $datetime1 = new DateTime($first_datetime); 
    $datetime2 = new DateTime($second_datetime); 
    $interval = $datetime1->diff($datetime2); 
    return $interval->format('H:i:s'); 
} 

// One of the date/time parameters is now so 
// we only have to pass one parameter 
echo diff('18:00:01'); 

// Neither parameter is now 
echo diff('18:00:01', '20:00:00'); 
?>