From 75426870e2c4be6751886751f3e452ec1329adc4 Mon Sep 17 00:00:00 2001
From: Sebastian Bergmann <sb@sebastian-bergmann.de>
Date: Thu, 23 Mar 2023 14:26:04 +0100
Subject: [PATCH] Closes #5270

---
 ChangeLog-9.6.md         |  7 ++++
 src/Util/GlobalState.php | 84 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+)

diff --git a/ChangeLog-9.6.md b/ChangeLog-9.6.md
index 30aa32ea526..0f8b9689bd0 100644
--- a/ChangeLog-9.6.md
+++ b/ChangeLog-9.6.md
@@ -2,6 +2,12 @@
 
 All notable changes of the PHPUnit 9.6 release series are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
 
+## [9.6.6] - 2023-MM-DD
+
+### Fixed
+
+* [#5270](https://github.com/sebastianbergmann/phpunit/issues/5270): `GlobalState::getIniSettingsAsString()` generates code that triggers warnings
+
 ## [9.6.5] - 2023-03-09
 
 ### Changed
@@ -46,6 +52,7 @@ All notable changes of the PHPUnit 9.6 release series are documented in this fil
 * [#5064](https://github.com/sebastianbergmann/phpunit/issues/5064): Deprecate `PHPUnit\Framework\TestCase::getMockClass()`
 * [#5132](https://github.com/sebastianbergmann/phpunit/issues/5132): Deprecate `Test` suffix for abstract test case classes
 
+[9.6.6]: https://github.com/sebastianbergmann/phpunit/compare/9.6.5...9.6
 [9.6.5]: https://github.com/sebastianbergmann/phpunit/compare/9.6.4...9.6.5
 [9.6.4]: https://github.com/sebastianbergmann/phpunit/compare/9.6.3...9.6.4
 [9.6.3]: https://github.com/sebastianbergmann/phpunit/compare/9.6.2...9.6.3
diff --git a/src/Util/GlobalState.php b/src/Util/GlobalState.php
index cc5c2228641..5cf16bcd40f 100644
--- a/src/Util/GlobalState.php
+++ b/src/Util/GlobalState.php
@@ -9,6 +9,8 @@
  */
 namespace PHPUnit\Util;
 
+use const PHP_MAJOR_VERSION;
+use const PHP_MINOR_VERSION;
 use function array_keys;
 use function array_reverse;
 use function array_shift;
@@ -47,6 +49,79 @@ final class GlobalState
         '_REQUEST',
     ];
 
+    /**
+     * @psalm-var array<string, array<string, true>>
+     */
+    private const DEPRECATED_INI_SETTINGS = [
+        '7.3' => [
+            'iconv.input_encoding'       => true,
+            'iconv.output_encoding'      => true,
+            'iconv.internal_encoding'    => true,
+            'mbstring.func_overload'     => true,
+            'mbstring.http_input'        => true,
+            'mbstring.http_output'       => true,
+            'mbstring.internal_encoding' => true,
+            'string.strip_tags'          => true,
+        ],
+
+        '7.4' => [
+            'iconv.input_encoding'       => true,
+            'iconv.output_encoding'      => true,
+            'iconv.internal_encoding'    => true,
+            'mbstring.func_overload'     => true,
+            'mbstring.http_input'        => true,
+            'mbstring.http_output'       => true,
+            'mbstring.internal_encoding' => true,
+            'pdo_odbc.db2_instance_name' => true,
+            'string.strip_tags'          => true,
+        ],
+
+        '8.0' => [
+            'iconv.input_encoding'       => true,
+            'iconv.output_encoding'      => true,
+            'iconv.internal_encoding'    => true,
+            'mbstring.http_input'        => true,
+            'mbstring.http_output'       => true,
+            'mbstring.internal_encoding' => true,
+        ],
+
+        '8.1' => [
+            'auto_detect_line_endings'     => true,
+            'filter.default'               => true,
+            'iconv.input_encoding'         => true,
+            'iconv.output_encoding'        => true,
+            'iconv.internal_encoding'      => true,
+            'mbstring.http_input'          => true,
+            'mbstring.http_output'         => true,
+            'mbstring.internal_encoding'   => true,
+            'oci8.old_oci_close_semantics' => true,
+        ],
+
+        '8.2' => [
+            'auto_detect_line_endings'     => true,
+            'filter.default'               => true,
+            'iconv.input_encoding'         => true,
+            'iconv.output_encoding'        => true,
+            'iconv.internal_encoding'      => true,
+            'mbstring.http_input'          => true,
+            'mbstring.http_output'         => true,
+            'mbstring.internal_encoding'   => true,
+            'oci8.old_oci_close_semantics' => true,
+        ],
+
+        '8.3' => [
+            'auto_detect_line_endings'     => true,
+            'filter.default'               => true,
+            'iconv.input_encoding'         => true,
+            'iconv.output_encoding'        => true,
+            'iconv.internal_encoding'      => true,
+            'mbstring.http_input'          => true,
+            'mbstring.http_output'         => true,
+            'mbstring.internal_encoding'   => true,
+            'oci8.old_oci_close_semantics' => true,
+        ],
+    ];
+
     /**
      * @throws Exception
      */
@@ -106,6 +181,10 @@ public static function getIniSettingsAsString(): string
         $result = '';
 
         foreach (ini_get_all(null, false) as $key => $value) {
+            if (self::isIniSettingDeprecated($key)) {
+                continue;
+            }
+
             $result .= sprintf(
                 '@ini_set(%s, %s);' . "\n",
                 self::exportVariable($key),
@@ -200,4 +279,9 @@ private static function arrayOnlyContainsScalars(array $array): bool
 
         return $result;
     }
+
+    private static function isIniSettingDeprecated(string $iniSetting): bool
+    {
+        return isset(self::DEPRECATED_INI_SETTINGS[PHP_MAJOR_VERSION . '.' . PHP_MINOR_VERSION][$iniSetting]);
+    }
 }