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system/Test/IniTestTrait.php

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+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Test;
+
+trait IniTestTrait
+{
+    private array $iniSettings = [];
+
+    private function backupIniValues(array $keys): void
+    {
+        foreach ($keys as $key) {
+            $this->iniSettings[$key] = ini_get($key);
+        }
+    }
+
+    private function restoreIniValues(): void
+    {
+        foreach ($this->iniSettings as $key => $value) {
+            ini_set($key, $value);
+        }
+
+        $this->iniSettings = [];
+    }
+}