计算经过时间的PHP [英] Calculate elapsed time in php

问题描述

您好，我正在尝试计算php中的经过时间.问题不在php中，而是我的数学技能.例如: 时间:11:35:20(hh:mm:ss)，现在说当前时间是:12:00:45(hh:mm:ss)，那么我公式中的时差给出输出: 1 :-34:25 .实际上应该是:25:25

Hi All I'm trying to calculate elapsed time in php. The problem is not in php, it's with my mathematical skills. For instance: Time In: 11:35:20 (hh:mm:ss), now say the current time is: 12:00:45 (hh:mm:ss) then the time difference in my formula gives the output: 1:-34:25. It should actually be: 25:25

$d1=getdate();
$hournew=$d1['hours'];
$minnew=$d1['minutes'];
$secnew=$d1['seconds'];

$hourin = $_SESSION['h'];
$secin = $_SESSION['s'];
$minin = $_SESSION['m'];

$h1=$hournew-$hourin;
$s1=$secnew-$secin;
$m1=$minnew-$minin;

if($s1<0) {
    $s1+=60; }
if($s1>=(60-$secin)) {
    $m1--;  }
if($m1<0) {
    $m1++; }
echo $h1 . ":" . $m1 . ":" . $s1;

请帮忙吗?

编辑

对不起，我可能不得不补充，页面每秒刷新一次以显示新的经过时间，因此我必须使用上面的方法.对于无法正确解释，我深表歉意.

Sorry I probably had to add that the page refreshes every second to display the new elapsed time so I have to use my method above. My apologies for not explaining correctly.

推荐答案

这将为您提供从开始到结束之间的秒数.

This will give you the number of seconds between start and end.

<?php

// microtime(true) returns the unix timestamp plus milliseconds as a float
$starttime = microtime(true);
/* do stuff here */
$endtime = microtime(true);
$timediff = $endtime - $starttime;

?>

要在以后显示时钟样式，可以执行以下操作:

To display it clock-style afterwards, you'd do something like this:

<?php

// pass in the number of seconds elapsed to get hours:minutes:seconds returned
function secondsToTime($s)
{
    $h = floor($s / 3600);
    $s -= $h * 3600;
    $m = floor($s / 60);
    $s -= $m * 60;
    return $h.':'.sprintf('%02d', $m).':'.sprintf('%02d', $s);
}

?>

如果不想在小数点后显示数字，只需在secondsToTime()函数的开头添加round($s);.

If you don't want to display the numbers after the decimal, just add round($s); to the beginning of the secondsToTime() function.

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