Basic usage

The example illustrates the basic StopWatch class usage

Example #1 Measure several code blocks execution and get the total

<?php

$c 
= new HRTime\StopWatch;

$c->start();
/* measure this code block execution */
for ($i 0$i 1024*1024$i++);
$c->stop();
$elapsed0 $c->getLastElapsedTime(HRTime\Unit::NANOSECOND);

/* measurement is not running here*/
for ($i 0$i 1024*1024$i++);

$c->start();
/* measure this code block execution */
for ($i 0$i 1024*1024$i++);
$c->stop();
$elapsed1 $c->getLastElapsedTime(HRTime\Unit::NANOSECOND);

$elapsed_total $c->getElapsedTime(HRTime\Unit::NANOSECOND);

?>
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