将HH:MM:SS格式的时间仅转换为秒吗?

问题描述

如何将格式为HH:MM:SS的时间转换为固定的秒数?

How to turn time in format HH:MM:SS into a flat seconds number?

P.S..有时时间只能采用MM:SS格式.

P.S. Time could be sometimes in format MM:SS only.

推荐答案

无需explode任何内容:

$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:

And if you don't want to use regular expressions:

$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;

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