将HH：MM：SS格式的时间转换为仅秒？

Question

如何将时间格式HH:MM:SS转换为平面秒数？

P.S.时间可能有时只在格式MM:SS。

Answer 1

无需任何explode：

$str_time = "23:12:95"; 

$str_time = preg_replace("/^([\d]{1,2})\:([\d]{2})$/", "00:$1:$2", $str_time); 

sscanf($str_time, "%d:%d:%d", $hours, $minutes, $seconds); 

$time_seconds = $hours * 3600 + $minutes * 60 + $seconds; 

如果你不想使用正则表达式：

$str_time = "2:50"; 

sscanf($str_time, "%d:%d:%d", $hours, $minutes, $seconds); 

$time_seconds = isset($seconds) ? $hours * 3600 + $minutes * 60 + $seconds : $hours * 60 + $minutes; 

Answer 2

伪代码：

split it by colon 
seconds = 3600 * HH + 60 * MM + SS 

Answer 3

<?php 
$time = '21:32:32'; 
$seconds = 0; 
$parts = explode(':', $time); 

if (count($parts) > 2) { 
    $seconds += $parts[0] * 3600; 
} 
$seconds += $parts[1] * 60; 
$seconds += $parts[2]; 

Answer 4

// HH:MM:SS or MM:SS 
echo substr($time , "-2"); // returns last 2 chars : SS 

Answer 5

试试这个：

$time = "21:30:10"; 
$timeArr = array_reverse(explode(":", $time)); 
$seconds = 0; 
foreach ($timeArr as $key => $value) 
{ 
    if ($key > 2) break; 
    $seconds += pow(60, $key) * $value; 
} 
echo $seconds; 

Answer 6

$time="12:10:05"; //your time 
echo strtotime("0000-00-00 $time")-strtotime("0000-00-00 00:00:00"); 

Answer 7

我觉得最简单的方法是使用strtotime()功能：

$time = '21:30:10'; 
$seconds = strtotime("1970-01-01 $time UTC"); 
echo $seconds; 

// same with objects (for php5.3+) 
$time = '21:30:10'; 
$dt = new DateTime("1970-01-01 $time", new DateTimeZone('UTC')); 
$seconds = (int)$dt->getTimestamp(); 
echo $seconds; 

demo

---

功能date_parse()也可用于解析日期和时间：

$time = '21:30:10'; 
$parsed = date_parse($time); 
$seconds = $parsed['hour'] * 3600 + $parsed['minute'] * 60 + $parsed['second']; 

demo

---

如果将解析格式MM:SS与strtotime()或date_parse()它会失败（date_parse()在strtotime()使用和DateTime），因为当你输入格式，如xx:yy解析器假定它是HH:MM而不是MM:SS。我建议检查格式，并且如果您只有MM:SS，则需要输入00:。

demostrtotime()demodate_parse()

---

如果你有时间超过24，那么你可以使用下面的函数（它会为MM:SS和HH:MM:SS格式工作）：

function TimeToSec($time) { 
    $sec = 0; 
    foreach (array_reverse(explode(':', $time)) as $k => $v) $sec += pow(60, $k) * $v; 
    return $sec; 
} 

demo

Answer 8

简单

function timeToSeconds($time) 
{ 
    $timeExploded = explode(':', $time); 
    if (isset($timeExploded[2])) { 
     return $timeExploded[0] * 3600 + $timeExploded[1] * 60 + $timeExploded[2]; 
    } 
    return $timeExploded[0] * 3600 + $timeExploded[1] * 60; 
} 

Answer 9

$time = 00:06:00; 
    $timeInSeconds = strtotime($time) - strtotime('TODAY'); 

Answer 10

可以使用strtotime函数从today 00:00:00返回的秒数。

$seconds= strtotime($time) - strtotime('00:00:00');