From 6bc73b0dab7b91630ade18c5adc2ad991b7f1e1d Mon Sep 17 00:00:00 2001
From: Joas Schilling <coding@schilljs.com>
Date: Thu, 18 Dec 2025 08:05:13 +0100
Subject: [PATCH] fix(PDO): Switch away from deprecated PDO parts

Signed-off-by: Joas Schilling <coding@schilljs.com>
---
 lib/private/DB/ConnectionFactory.php | 23 +++++++++++++++++------
 lib/private/DB/SQLiteSessionInit.php |  6 +++++-
 2 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/lib/private/DB/ConnectionFactory.php b/lib/private/DB/ConnectionFactory.php
index 2429eeb142f..42112560311 100644
--- a/lib/private/DB/ConnectionFactory.php
+++ b/lib/private/DB/ConnectionFactory.php
@@ -88,12 +88,23 @@ class ConnectionFactory {
 			throw new \InvalidArgumentException("Unsupported type: $type");
 		}
 		$result = $this->defaultConnectionParams[$normalizedType];
-		// \PDO::MYSQL_ATTR_FOUND_ROWS may not be defined, e.g. when the MySQL
-		// driver is missing. In this case, we won't be able to connect anyway.
-		if ($normalizedType === 'mysql' && defined('\PDO::MYSQL_ATTR_FOUND_ROWS')) {
-			$result['driverOptions'] = [
-				\PDO::MYSQL_ATTR_FOUND_ROWS => true,
-			];
+		/**
+		 * {@see \PDO::MYSQL_ATTR_FOUND_ROWS} may not be defined, e.g. when the MySQL
+		 * driver is missing. In this case, we won't be able to connect anyway.
+		 * In PHP 8.5 it's deprecated and {@see \Pdo\Mysql::ATTR_FOUND_ROWS} should be used,
+		 * but that is only available since PHP 8.4
+		 */
+		if ($normalizedType === 'mysql') {
+			if (PHP_VERSION_ID >= 80500 && class_exists(\Pdo\Mysql::class)) {
+				/** @psalm-suppress UndefinedClass */
+				$result['driverOptions'] = [
+					\Pdo\Mysql::ATTR_FOUND_ROWS => true,
+				];
+			} elseif (PHP_VERSION_ID < 80500 && defined('\PDO::MYSQL_ATTR_FOUND_ROWS')) {
+				$result['driverOptions'] = [
+					\PDO::MYSQL_ATTR_FOUND_ROWS => true,
+				];
+			}
 		}
 		return $result;
 	}
diff --git a/lib/private/DB/SQLiteSessionInit.php b/lib/private/DB/SQLiteSessionInit.php
index 5fe0cb3abf6..3e05b6e59a1 100644
--- a/lib/private/DB/SQLiteSessionInit.php
+++ b/lib/private/DB/SQLiteSessionInit.php
@@ -44,7 +44,11 @@ class SQLiteSessionInit implements EventSubscriber {
 		/** @var \Doctrine\DBAL\Driver\PDO\Connection $connection */
 		$connection = $args->getConnection()->getWrappedConnection();
 		$pdo = $connection->getWrappedConnection();
-		$pdo->sqliteCreateFunction('md5', 'md5', 1);
+		if (PHP_VERSION_ID >= 80500 && method_exists($pdo, 'createFunction')) {
+			$pdo->createFunction('md5', 'md5', 1);
+		} else {
+			$pdo->sqliteCreateFunction('md5', 'md5', 1);
+		}
 	}
 
 	public function getSubscribedEvents() {