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<?php
// class MicroTimer (issue #146)
// wraps calls to microtime(), calculating the elapsed time and rounding output
//
class MicroTimer {
private $startTime, $stopTime;
// creates and starts a timer
function __construct()
{
$this->startTime = microtime(true);
}
// stops a timer
public function stop()
{
$this->stopTime = microtime(true);
}
// returns the number of seconds from the timer's creation, or elapsed
// between creation and call to ->stop()
public function elapsed()
{
if ($this->stopTime)
return round($this->stopTime - $this->startTime, 4);
return round(microtime(true) - $this->startTime, 4);
}
// called when using a MicroTimer object as a string
public function __toString()
{
return (string) $this->elapsed();
}
}
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