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plugins/xframework/common/Data.php

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+<?php
+namespace XFramework;
+/**
+ * Roundcube Plus Framework plugin.
+ *
+ * This file provides a base class for the Roundcube Plus plugins.
+ *
+ * Copyright 2016, Tecorama LLC.
+ *
+ * @license Commercial. See the LICENSE file for details.
+ */
+
+require_once "Singleton.php";
+
+/**
+ * A singleton class that stores instances of classes and data available to all the plugins.
+ * @package XFramework
+ */
+class Data {
+    use Singleton;
+    private array $data = [];
+
+    public function get($key, $default = null)
+    {
+        return $this->data[$key] ?? $default;
+    }
+
+    public function set($key, $value)
+    {
+        $this->data[$key] = $value;
+    }
+
+    public function has($key): bool
+    {
+        return isset($this->data[$key]);
+    }
+}