将 HH: MM: SS 格式的时间转换为秒？

在伪代码中:

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

<?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];

不需要 explode任何东西:

$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;

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;

我认为 最简单的方法将使用 strtotime()函数:

$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;

小样

函数 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'];

小样

如果你用 strtotime()或者 date_parse()解析 MM:SS格式，那么它将会失败(date_parse()在 strtotime()和 DateTime中使用) ，因为当你输入像 xx:yy解析器这样的格式时，假设它是 HH:MM而不是 MM:SS。我会建议检查格式，并预先 00:如果你只有 MM:SS。

演示 strtotime()
演示 date_parse()

如果你有超过24小时的时间，那么你可以使用下一个函数(它适用于 MM:SS和 HH:MM:SS格式) :

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

小样

很简单

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;
}

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

可以使用 strtotime函数从 today 00:00:00返回秒数。

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

function time2sec($time) {
$durations = array_reverse(explode(':', $item->duration));
$second = array_shift($durations);
foreach ($durations as $duration) {
$second += (60 * $duration);
}
return $second;
}
echo time2sec('4:52'); // 292
echo time2sec('2:01:42'); // 7302

在 Windows 32位 PHP 版本: 7.2.31我得到一些错误的所有版本张贴在这里。 如果时间是00:00:00或00:00:00，则返回0，并将其用作“”空字符串，而使用空字符串进行计算将返回错误“ A Non WELLNUMERIC blabla。

这种方法也适用于超过24小时的工作:

function TimeToSec(string $time) {
$timearray = explode(":",$time);
$hours   = (int)$timearray[0];
$minutes = (int)$timearray[1];
$seconds = (int)$timearray[2];;


//echo "Hours: " . $hours ."<br>";
//echo "minutes: " . $minutes ."<br>";
//echo "seconds: " . $seconds ."<br>";


$value = ($hours * 3600) + ($minutes * 60) + $seconds;
return $value;
}


echo TimeToSec("25:00:30");