将HH:MM:SS格式的时间转换为仅秒数？

Question

如何将格式的时间转换HH:MM:SS为平秒数？

PS时间有时可能MM:SS只是格式化.

Answer 1

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;

如果您不想使用正则表达式:

$str_time = "2:50";

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

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

Answer 2

我认为最简单的方法是使用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;

demo

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'];

demo

如果将解析格式MM:SS与strtotime()或date_parse()将失败(date_parse()在使用strtotime()和DateTime),因为当你这样输入格式xx:yy分析器假设它是HH:MM不MM:SS.我建议检查格式,00:如果只有,则建议MM:SS.

demo strtotime() demo date_parse()

如果你有超过24小时,那么你可以使用下一个功能(它将工作MM:SS和HH:MM:SS格式化):

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

demo

Answer 3

在伪代码中:

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

Answer 4

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

Answer 5

您可以使用该strtotime函数从 返回秒数today 00:00:00。

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

Answer 6

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;