使用 PHP 添加两个类似格式的时间值

使用此功能...

 function sum_the_time($time1, $time2) {
      $times = array($time1, $time2);
      $seconds = 0;
      foreach ($times as $time)
      {
        list($hour,$minute,$second) = explode(':', $time);
        $seconds += $hour*3600;
        $seconds += $minute*60;
        $seconds += $second;
      }
      $hours = floor($seconds/3600);
      $seconds -= $hours*3600;
      $minutes  = floor($seconds/60);
      $seconds -= $minutes*60;
      if($seconds < 9)
      {
      $seconds = "0".$seconds;
      }
      if($minutes < 9)
      {
      $minutes = "0".$minutes;
      }
        if($hours < 9)
      {
      $hours = "0".$hours;
      }
      return "{$hours}:{$minutes}:{$seconds}";
    }

strtotime 函数将 full date 作为参数，有效格式如下：http://www.php.net/manual/en/datetime.formats.php

您可以在在线PHP手册中看到该功能 http://php.net/manual/en/function.strtotime.php

如果您之前从数据库构建这些时间字符串，则可能需要将它们重建为如下所示的内容：

$time = "00:06:58";
$time2 = "40 minutes";
$timestamp = strtotime($time." +".$time2);
$endTime = date("d.m.Y H:i:s", $timestamp);

使用 php 添加两次的最简单方法是：

1） 将时间从 H：i：s（例如 08：15：40）格式转换为秒。
2）对第二次时间值执行相同的操作 参考：步骤1
3）添加转换后的值并存储PHP变量
4）现在将总计（以秒为单位）转换为H：i：s
它对我有用。

PHP 脚本：

$str_time ="08:04:40";
$str_time = preg_replace("/^(['d]{1,2})':(['d]{2})$/", "00:$1:$2", $str_time);
sscanf($str_time, "%d:%d:%d", $hours, $minutes, $seconds);
$hrs_old_seconds = $hours * 3600 + $minutes * 60 + $seconds;
$str_time ="02:10:22";
$str_time = preg_replace("/^(['d]{1,2})':(['d]{2})$/", "00:$1:$2", $str_time);
sscanf($str_time, "%d:%d:%d", $hours, $minutes, $seconds);
$hrs_toadd_seconds = $hours * 3600 + $minutes * 60 + $seconds;
$hrs_old_int1 = $hrs_old_seconds + $hrs_toadd_seconds;
echo $Total=gmdate("H:i:s", $hrs_old_int1);

结果= ：10：15：02

Anudeep 的解决方案非常适合我的用例，但我也需要能够添加负数。下面是他的代码的略微编辑版本，用于获取并返回负时间字符串（例如"-01：01：01"）：

public static function sum_the_times($time1, $time2)
{
    $times = array($time1, $time2);
    $seconds = 0;
    $negative = false;
    foreach ($times as $time) {
        list($hour,$minute,$second) = explode(':', $time);
        if(substr($hour,0,1) == '-'){
            $seconds -= substr($hour,1)*3600;
            $seconds -= $minute*60;
            $seconds -= $second;
        } else {
            $seconds += $hour*3600;
            $seconds += $minute*60;
            $seconds += $second;
        }
    }
    if (substr($seconds, 0, 1) == '-') {
        $negative = true;
        $seconds = ($seconds * -1);
    }
    $hours = floor($seconds/3600);
    $seconds -= $hours*3600;
    $minutes  = floor($seconds/60);
    $seconds -= $minutes*60;
    if ($seconds < 9) {
        $seconds = "0".$seconds;
    }
    if ($minutes < 9) {
        $minutes = "0".$minutes;
    }
    if ($hours < 9) {
        $hours = "0".$hours;
    }
    return ($negative ? "-" : "")."{$hours}:{$minutes}:{$seconds}";
}

你可以试试这个

$time = "04:00:00";
$time2 = "03:30:00";
$result = date("H:i:s",strtotime($time)+strtotime($time2));
echo $result;

它给出输出 07：30：00，但它在不同版本的操作系统中有时不起作用。如果你想得到时间的总和，那么你可以使用这个代码

<?php
   function CalculateTime($time1, $time2) {
      $time1 = date('H:i:s',strtotime($time1));
      $time2 = date('H:i:s',strtotime($time2));
      $times = array($time1, $time2);
      $seconds = 0;
      foreach ($times as $time)
      {
        list($hour,$minute,$second) = explode(':', $time);
        $seconds += $hour*3600;
        $seconds += $minute*60;
        $seconds += $second;
      }
      $hours = floor($seconds/3600);
      $seconds -= $hours*3600;
      $minutes  = floor($seconds/60);
      $seconds -= $minutes*60;
      if($seconds < 9)
      {
      $seconds = "0".$seconds;
      }
      if($minutes < 9)
      {
      $minutes = "0".$minutes;
      }
        if($hours < 9)
      {
      $hours = "0".$hours;
      }
      return "{$hours}:{$minutes}:{$seconds}";
    }
    $time1= '23:32:05';
    $time2 = '01:29';
    echo CalculateTime($time1,$time2);
?>

在第二个代码中，您可以以小时：分钟或小时：分钟：秒为单位发送时间。此代码接受这两种格式，因为它会自动转换时间

这是一个可以满足超过 24 小时且不使用 strtotime 的版本：

$time0 = "24:01:02";
$time1 = "01:02:03";
$matches0 = explode(':',$time0); // split up the string
$matches1 = explode(':',$time1);
$sec0 = $matches0[0]*60*60+$matches0[1]*60+$matches0[2];
$sec1 = $sec0+ $matches1[0]*3600+$matches1[1]*60+$matches1[2]; // get total seconds
$h = intval(($sec1)/3600);
$m = intval(($sec1-$h*3600)/60);
$s = $sec1-$h*3600-$m*60;
echo $str = str_pad($h, 2, '0', STR_PAD_LEFT).':'.str_pad($m, 2, '0', STR_PAD_LEFT).':'.str_pad($s, 2, '0', STR_PAD_LEFT);