HRTime\StopWatch::start
(PECL hrtime >= 0.4.3)
HRTime\StopWatch::start — Start time measurement
説明
Starts the time measurement. It has no effect if the measurement was already started. The measurement will be continued if it was previously stopped.
パラメータ
この関数にはパラメータはありません。
戻り値
Returns void.
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