dou47278 2014-12-14 19:09
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与pr合作 php中的单圈时间(h:mm:ss.000)

i'm quering a webapi and is returned lap times in this format. I'd like to to addition etc on this laptimes to get total time, average etc. But i cant seem to spot the function i need to parse this format.

0:00:20.128 0:00:40.128 0:00:28.128

Any idea how to to this?

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  • dtgr3392 2014-12-14 19:18
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    This is fairly easy to parse manually. To convert this to an amount of time in milliseconds, which is probably what you'd want to do, just do this:

    function lap_time_to_millis($lap) {
        $components = explode('.', $lap);
        $time_components = explode(':', $components[0]);
        return intval($components[1])
             + intval($time_components[2]) * 1000
             + intval($time_components[1]) * 60000
             + intval($time_components[0]) * 3600000;
    }
    

    Then, to convert milliseconds to a lap format, use this:

    function millis_to_lap_time($millis) {
        $hrs = intval($millis / 3600000);
        $mins = str_pad(intval($millis / 60000) % 60, 2, '0', STR_PAD_LEFT);
        $secs = str_pad(intval($millis / 1000) % 60, 2, '0', STR_PAD_LEFT);
        $milli = str_pad($millis % 1000, 3, '0', STR_PAD_LEFT);
        return "$hrs:$mins:$secs.$milli";
    }
    
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