first commit

vendor/vlucas/phpdotenv/src/Repository/Adapter/ServerConstAdapter.php

@@ -0,0 +1,89 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Dotenv\Repository\Adapter;
+
+use PhpOption\Option;
+use PhpOption\Some;
+
+final class ServerConstAdapter implements AdapterInterface
+{
+    /**
+     * Create a new server const adapter instance.
+     *
+     * @return void
+     */
+    private function __construct()
+    {
+        //
+    }
+
+    /**
+     * Create a new instance of the adapter, if it is available.
+     *
+     * @return \PhpOption\Option<\Dotenv\Repository\Adapter\AdapterInterface>
+     */
+    public static function create()
+    {
+        /** @var \PhpOption\Option<AdapterInterface> */
+        return Some::create(new self());
+    }
+
+    /**
+     * Read an environment variable, if it exists.
+     *
+     * @param non-empty-string $name
+     *
+     * @return \PhpOption\Option<string>
+     */
+    public function read(string $name)
+    {
+        /** @var \PhpOption\Option<string> */
+        return Option::fromArraysValue($_SERVER, $name)
+            ->filter(static function ($value) {
+                return \is_scalar($value);
+            })
+            ->map(static function ($value) {
+                if ($value === false) {
+                    return 'false';
+                }
+
+                if ($value === true) {
+                    return 'true';
+                }
+
+                /** @psalm-suppress PossiblyInvalidCast */
+                return (string) $value;
+            });
+    }
+
+    /**
+     * Write to an environment variable, if possible.
+     *
+     * @param non-empty-string $name
+     * @param string           $value
+     *
+     * @return bool
+     */
+    public function write(string $name, string $value)
+    {
+        $_SERVER[$name] = $value;
+
+        return true;
+    }
+
+    /**
+     * Delete an environment variable, if possible.
+     *
+     * @param non-empty-string $name
+     *
+     * @return bool
+     */
+    public function delete(string $name)
+    {
+        unset($_SERVER[$name]);
+
+        return true;
+    }
+}