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<?php
namespace App;
final class Timer
{
private array $timers = [];
public function start(string $name): void
$this->timers[$name] = microtime(true);
}
public function get(string $name): float
if (!array_key_exists($name, $this->timers)) {
throw new \InvalidArgumentException("There is no \"$name\" timer started");
return microtime(true) - $this->timers[$name];
yiisoft /
yii-demo
