initial commit

packages/woocommerce-admin/src/RemoteInboxNotifications/Transformers/ArrayKeys.php

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+<?php
+
+namespace Automattic\WooCommerce\Admin\RemoteInboxNotifications\Transformers;
+
+use Automattic\WooCommerce\Admin\RemoteInboxNotifications\TransformerInterface;
+use stdClass;
+
+/**
+ * Search array value by one of its key.
+ *
+ * @package Automattic\WooCommerce\Admin\RemoteInboxNotifications\Transformers
+ */
+class ArrayKeys implements TransformerInterface {
+	/**
+	 * Search array value by one of its key.
+	 *
+	 * @param mixed         $value a value to transform.
+	 * @param stdClass|null $arguments arguments.
+	 * @param string|null   $default default value.
+	 *
+	 * @return mixed
+	 */
+	public function transform( $value, stdClass $arguments = null, $default = null ) {
+		return array_keys( $value );
+	}
+
+	/**
+	 * Validate Transformer arguments.
+	 *
+	 * @param stdClass|null $arguments arguments to validate.
+	 *
+	 * @return mixed
+	 */
+	public function validate( stdClass $arguments = null ) {
+		return true;
+	}
+}