Transfers PurePerms data saved in YAML format to MySQL database

PPYML2MySQL.php

<?php

/**
 * @name zPPYML2MySQL
 * @author Chris Prime
 * @api 3.0.0
 * @version 1.0.0
 * @main ym\PPYML2MySQL
 * @loadafter PurePerms
 */

namespace ym {

	use _64FF00\PurePerms\PurePerms;
	use _64FF00\PurePerms\provider\MySQLProvider;
	use _64FF00\PurePerms\provider\YamlV1Provider;
	use pocketmine\OfflinePlayer;

	class PPYML2MySQL extends \pocketmine\plugin\PluginBase {

		public function onEnable() {
			$pp = $this->getServer()->getPluginManager()->getPlugin("PurePerms");
			if($pp instanceof PurePerms && $pp->isEnabled()) {
				if($pp->getProvider() instanceof MySQLProvider) {
					if($this->transfer($pp)) {
						$this->getLogger()->notice("Transfer successful");
					} else {
						$this->getLogger()->notice("Transfer failed");
					}
				} else {
					$this->getLogger()->notice("PurePerms is not using MySQL");
				}
			} else {
				$this->getLogger()->error("PurePerms not enabled");
			}
		}

		public function transfer(PurePerms $pp) : bool {
			$pdt = 0;
			$gpt = 0;
			$p = new YamlV1Provider($pp);
			$gpt = count($p->getGroupsData());
			$pp->getProvider()->setGroupsData($p->getGroupsData());
			$playerFiles = glob($pp->getDataFolder()."players/*.yml");
			foreach ($playerFiles as $file) {
				$ps = explode("/", $file);
				$name = substr($ps[count($ps) - 1], 0, -4);
				$op = new OfflinePlayer($this->getServer(), $name);
				$pp->getProvider()->setPlayerData($op, $p->getPlayerData($op));
				$pdt++;
			}
			$this->getLogger()->notice("Players transfered: ".$pdt);
			$this->getLogger()->notice("Groups transfered: ".$gpt);
			return true;
		}

	}

}