From 93b0d1c03f8dc7649581b918f2f3e68eb12a3ce5 Mon Sep 17 00:00:00 2001
From: ready-research <72916209+ready-research@users.noreply.github.com>
Date: Fri, 17 Dec 2021 14:30:09 +0530
Subject: [PATCH] Server: fixed not being able to deop players whose names were
 added to ops.txt with uppercase letters in them

same as https://github.com/iTXTech/Genisys/issues/1188
---
 src/pocketmine/Server.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index 6133210ad..8e3445b07 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -1368,8 +1368,13 @@ public function addOp($name){
 	 * @param string $name
 	 */
 	public function removeOp($name){
-		$this->operators->remove(strtolower($name));
-
+		$lowercaseName = strtolower($name);
+		foreach($this->operators->getAll() as $operatorName => $_){
+			$operatorName = (string) $operatorName;
+			if($lowercaseName === strtolower($operatorName)){
+				$this->operators->remove($operatorName);
+			}
+		}
 		if(($player = $this->getPlayerExact($name)) instanceof Player){
 			$player->recalculatePermissions();
 		}