Function to dynamically register event listeners in a PocketMine-MP plugin.

dynamicallyRegisterEventListeners.php

<?php
public function registerEventListeners() : void{
    /** @var \SplFileInfo $file */
    foreach(new RegexIterator(new RecursiveIteratorIterator(new RecursiveDirectoryIterator(__DIR__ . DIRECTORY_SEPARATOR . 'listener')), '/^.+Listener\.php$/') as $file){
      /** @phpstan-var class-string<ListenerBase> $classFullName */
      $classFullName = str_replace(DIRECTORY_SEPARATOR, '\\', substr($file->getPath(), strlen($this->getFile() . 'src' . DIRECTORY_SEPARATOR))) . '\\' . $file->getBasename('.php');
      $eventListenerClass = new ReflectionClass($classFullName);
      if(!$eventListenerClass->isAbstract()){
        /** @var ListenerBase $eventListenerInstance */
        $eventListenerInstance = $eventListenerClass->newInstance($this);
        $this->getServer()->getPluginManager()->registerEvents($eventListenerInstance, $this);
        $this->getLogger()->debug("Registered event listener " . get_class($eventListenerInstance));
      }
    }
  }