[8.6] Add clamp function

README.md

@@ -79,6 +79,7 @@ Polyfills are provided for:
 - the `NoDiscard` attribute introduced in PHP 8.5;
 - the `array_first` and `array_last` functions introduced in PHP 8.5;
 - the `DelayedTargetValidation` attribute introduced in PHP 8.5;
+- the `clamp` function introduced in PHP 8.6;
 
 It is strongly recommended to upgrade your PHP version and/or install the missing
 extensions whenever possible. This polyfill should be used only when there is no

composer.json

@@ -34,6 +34,7 @@
         "symfony/polyfill-php83": "self.version",
         "symfony/polyfill-php84": "self.version",
         "symfony/polyfill-php85": "self.version",
+        "symfony/polyfill-php86": "self.version",
         "symfony/polyfill-iconv": "self.version",
         "symfony/polyfill-intl-grapheme": "self.version",
         "symfony/polyfill-intl-icu": "self.version",

splitsh.json

@@ -10,6 +10,7 @@
         "polyfill-php83": "src/Php83",
         "polyfill-php84": "src/Php84",
         "polyfill-php85": "src/Php85",
+        "polyfill-php86": "src/Php86",
         "polyfill-iconv": "src/Iconv",
         "polyfill-intl-grapheme": "src/Intl/Grapheme",
         "polyfill-intl-icu": "src/Intl/Icu",

src/Php86/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2025-present Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

src/Php86/Php86.php

@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Polyfill\Php86;
+
+/**
+ * @author kylekatarnls <kylekatarnls@gmail.com>
+ *
+ * @internal
+ */
+final class Php86
+{
+    /**
+     * @template Value
+     * @template Minimum
+     * @template Maximum
+     *
+     * @param Value   $value
+     * @param Minimum $min
+     * @param Maximum $max
+     *
+     * @return Value|Minimum|Maximum
+     */
+    public static function clamp($value, $min, $max)
+    {
+        if (\is_float($min) && is_nan($min)) {
+            self::throwValueErrorIfAvailable('clamp(): Argument #2 ($min) must not be NAN');
+        }
+
+        if (\is_float($max) && is_nan($max)) {
+            self::throwValueErrorIfAvailable('clamp(): Argument #3 ($max) must not be NAN');
+        }
+
+        if ($max < $min) {
+            self::throwValueErrorIfAvailable('clamp(): Argument #2 ($min) must be smaller than or equal to argument #3 ($max)');
+        }
+
+        if ($value > $max) {
+            return $max;
+        }
+
+        if ($value < $min) {
+            return $min;
+        }
+
+        return $value;
+    }
+
+    private static function throwValueErrorIfAvailable(string $message): void
+    {
+        if (!class_exists(\ValueError::class)) {
+            throw new \InvalidArgumentException($message);
+        }
+
+        throw new \ValueError($message);
+    }
+}

src/Php86/README.md

@@ -0,0 +1,14 @@
+Symfony Polyfill / Php86
+========================
+
+This component provides features added to PHP 8.6 core:
+
+- [`clamp`](https://wiki.php.net/rfc/clamp_v2)
+
+More information can be found in the
+[main Polyfill README](https://github.com/symfony/polyfill/blob/main/README.md).
+
+License
+=======
+
+This library is released under the [MIT license](LICENSE).

src/Php86/bootstrap.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Symfony\Polyfill\Php86 as p;
+
+if (\PHP_VERSION_ID >= 80600) {
+    return;
+}
+
+if (\PHP_VERSION_ID >= 80000) {
+    return require __DIR__.'/bootstrap80.php';
+}
+
+if (!function_exists('clamp')) {
+    /**
+     * @template V
+     * @template L
+     * @template H
+     *
+     * @param V $value
+     * @param L $min
+     * @param H $max
+     *
+     * @return V|L|H
+     */
+    function clamp($value, $min, $max) { return p\Php86::clamp($value, $min, $max); }
+}

src/Php86/bootstrap80.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Symfony\Polyfill\Php86 as p;
+
+if (\PHP_VERSION_ID >= 80600) {
+    return;
+}
+
+if (!function_exists('clamp')) {
+    /**
+     * @template V
+     * @template L
+     * @template H
+     *
+     * @param V $value
+     * @param L $min
+     * @param H $max
+     *
+     * @return V|L|H
+     */
+    function clamp(mixed $value, mixed $min, mixed $max): mixed { return p\Php86::clamp($value, $min, $max); }
+}

src/Php86/composer.json

@@ -0,0 +1,32 @@
+{
+    "name": "symfony/polyfill-php86",
+    "type": "library",
+    "description": "Symfony polyfill backporting some PHP 8.6+ features to lower PHP versions",
+    "keywords": ["polyfill", "shim", "compatibility", "portable"],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nicolas Grekas",
+            "email": "p@tchwork.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=7.2"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Polyfill\\Php86\\": "" },
+        "files": [ "bootstrap.php" ]
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "thanks": {
+            "name": "symfony/polyfill",
+            "url": "https://github.com/symfony/polyfill"
+        }
+    }
+}

src/bootstrap.php

@@ -40,3 +40,7 @@
 if (\PHP_VERSION_ID < 80500) {
     require __DIR__.'/Php85/bootstrap.php';
 }
+
+if (\PHP_VERSION_ID < 80600) {
+    require __DIR__.'/Php86/bootstrap.php';
+}