Get elapsed time for the last interval

# HRTime\StopWatch::getLastElapsedTime

(PECL hrtime >= 0.4.3)

HRTime\StopWatch::getLastElapsedTime — Get elapsed time for the last interval

### 説明

public HRTime\StopWatch::getLastElapsedTime ([ int `$unit` ] ) : float

Get elapsed time for the previously closed interval.

### パラメータ

`unit`

  Time unit represented by a HRTime\Unit constant. Default is HRTime\Unit::SECOND.

### 返り値

Returns float indicating elapsed time.