feat: add Superglobals::setGet()

Author: kenjis

system/Superglobals.php

@@ -46,6 +46,12 @@ public function get(string $key)
         return $this->get[$key] ?? null;
     }
 
+    public function setGet(string $key, string $value): void
+    {
+        $this->get[$key] = $value;
+        $_GET[$key]      = $value;
+    }
+
     public function setGetArray(array $array): void
     {
         $this->get = $array;

tests/system/SuperglobalsTest.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <[email protected]>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter;
+
+use CodeIgniter\Test\CIUnitTestCase;
+
+/**
+ * @internal
+ *
+ * @group Others
+ */
+final class SuperglobalsTest extends CIUnitTestCase
+{
+    public function testSetGet()
+    {
+        $globals = new Superglobals([], []);
+
+        $globals->setGet('test', 'value1');
+
+        $this->assertSame('value1', $globals->get('test'));
+    }
+}