Initial Drupal 11 with DDEV setup

vendor/phootwork/collection/AbstractCollection.php

@@ -0,0 +1,61 @@
+<?php declare(strict_types=1);
+/**
+ * This file is part of the Phootwork package.
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @license MIT License
+ * @copyright Thomas Gossmann
+ */
+namespace phootwork\collection;
+
+use phootwork\lang\AbstractArray;
+
+/**
+ * AbstractCollection providing implementation for the Collection interface.
+ *
+ * @author Thomas Gossmann
+ */
+abstract class AbstractCollection extends AbstractArray implements Collection {
+	/**
+	 * Remove all elements from the collection.
+	 */
+	public function clear(): void {
+		$this->array = [];
+	}
+
+	/**
+	 * @internal
+	 */
+	public function rewind(): void {
+		reset($this->array);
+	}
+
+	/**
+	 * @internal
+	 */
+	public function current(): mixed {
+		return current($this->array);
+	}
+
+	/**
+	 * @internal
+	 */
+	public function key(): int|string|null {
+		return key($this->array);
+	}
+
+	/**
+	 * @internal
+	 */
+	public function next(): void {
+		next($this->array);
+	}
+
+	/**
+	 * @internal
+	 */
+	public function valid(): bool {
+		return key($this->array) !== null;
+	}
+}