PHP RFC: Your Title Here

 
final class StatCounter {
    private static self $instance;
    public static function get(): self {
        return self::$instance ??= new self;
    }
 
    private array $stats = [];
    private function __construct() {}
 
    public function __destruct() {
        // I.e. using influx/telegraf
        echo "Sending stats: ".json_encode($this->stats)."\n";
    }
 
    public function inc(string $key, int $by = 1): void {
        $this->stats[$key] ??= 0;
        $this->stats[$key] += $by;
    }
}
 
StatCounter::get()->inc('test');
StatCounter::get()->inc('test2');
 
// Stat reporting will always work on shutdown even if the following two lines are uncommented
 
//set_time_limit(1);
//while (1);