function milliseconds( $dp = null ){
	 	if( $this->is_running() ){
		 	$now = microtime( false );
		}
		else {
			$now = $this->stopped;
		}
		$started = self::parse_microtime( $this->started );
		$stopped = self::parse_microtime( $now );
		$ms = $stopped - $started;
		if( ! is_null($dp) ){
			$mult = pow( 10, $dp );
			$ms = round( $mult * $ms ) / $mult;
		}
		return $ms;
	 }
function milliseconds( $dp = null ){
	 	if( $this->is_running() ){
		 	$now = microtime( false );
		}
		else {
			$now = $this->stopped;
		}
		$started = self::parse_microtime( $this->started );
		$stopped = self::parse_microtime( $now );
		$ms = $stopped - $started;
		if( ! is_null($dp) ){
			$mult = pow( 10, $dp );
			$ms = round( $mult * $ms ) / $mult;
		}
		return $ms;
	 }
function milliseconds ( $ dp = null ) { if ( $ this -> is_running ( ) ) { $ now = microtime ( false ) ; } else { $ now = $ this -> stopped ; } $ started = self :: parse_microtime ( $ this -> started ) ; $ stopped = self :: parse_microtime ( $ now ) ; $ ms = $ stopped - $ started ; if ( ! is_null ( $ dp ) ) { $ mult = pow ( 10 , $ dp ) ; $ ms = round ( $ mult * $ ms ) / $ mult ; } return $ ms ; }
Get milliseconds since timer started.
@return float milliseconds
Get milliseconds since timer started .