fix: Use strict array comparisons in lib/

To avoid surprises with corner cases.

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

lib/base.php

@@ -923,7 +923,7 @@ class OC {
 				if (empty($restrictions)) {
 					continue;
 				}
-				$key = array_search($group->getGID(), $restrictions);
+				$key = array_search($group->getGID(), $restrictions, true);
 				unset($restrictions[$key]);
 				$restrictions = array_values($restrictions);
 				if (empty($restrictions)) {

lib/private/Accounts/AccountManager.php

@@ -353,7 +353,7 @@ class AccountManager implements IAccountManager {
 	protected function addMissingDefaultValues(array $userData, array $defaultUserData): array {
 		foreach ($defaultUserData as $defaultDataItem) {
 			// If property does not exist, initialize it
-			$userDataIndex = array_search($defaultDataItem['name'], array_column($userData, 'name'));
+			$userDataIndex = array_search($defaultDataItem['name'], array_column($userData, 'name'), true);
 			if ($userDataIndex === false) {
 				$userData[] = $defaultDataItem;
 				continue;

lib/private/Files/Storage/Local.php

@@ -250,7 +250,7 @@ class Local extends \OC\Files\Storage\Common {
 				return false;
 			}
 			$content = scandir($parentPath, SCANDIR_SORT_NONE);
-			return is_array($content) && array_search(basename($fullPath), $content) !== false;
+			return is_array($content) && array_search(basename($fullPath), $content, true) !== false;
 		} else {
 			return file_exists($this->getSourcePath($path));
 		}

lib/private/L10N/Factory.php

@@ -633,7 +633,7 @@ class Factory implements IFactory {
 			// put appropriate languages into appropriate arrays, to print them sorted
 			// common languages -> divider -> other languages
 			if (in_array($lang, self::COMMON_LANGUAGE_CODES)) {
-				$commonLanguages[array_search($lang, self::COMMON_LANGUAGE_CODES)] = $ln;
+				$commonLanguages[array_search($lang, self::COMMON_LANGUAGE_CODES, true)] = $ln;
 			} else {
 				$otherLanguages[] = $ln;
 			}

lib/private/Tags.php

@@ -645,7 +645,8 @@ class Tags implements ITags {
 		return array_search(strtolower($needle), array_map(
 			function ($tag) use ($mem) {
 				return strtolower(call_user_func([$tag, $mem]));
-			}, $haystack)
+			}, $haystack),
+			true
 		);
 	}