installed plugin Easy Digital Downloads version 3.1.0.3

wp-content/plugins/easy-digital-downloads/includes/libraries/class-recursive-arrayaccess.php

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+<?php
+/**
+ * Multidimensional ArrayAccess
+ *
+ * Allows ArrayAccess-like functionality with multidimensional arrays.  Fully supports
+ * both sets and unsets.
+ *
+ * @package WordPress
+ * @subpackage Session
+ * @since 3.6.0
+ */
+
+// Exit if accessed directly
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Recursive array class to allow multidimensional array access.
+ *
+ * @package WordPress
+ * @since 3.6.0
+ */
+class Recursive_ArrayAccess implements ArrayAccess {
+	/**
+	 * Internal data collection.
+	 *
+	 * @var array
+	 */
+	protected $container = array();
+
+	/**
+	 * Flag whether or not the internal collection has been changed.
+	 *
+	 * @var bool
+	 */
+	protected $dirty = false;
+
+	/**
+	 * Default object constructor.
+	 *
+	 * @param array $data
+	 */
+	protected function __construct( $data = array() ) {
+		foreach ( $data as $key => $value ) {
+			$this[ $key ] = $value;
+		}
+	}
+
+	/**
+	 * Allow deep copies of objects
+	 */
+	public function __clone() {
+		foreach ( $this->container as $key => $value ) {
+			if ( $value instanceof self ) {
+				$this[ $key ] = clone $value;
+			}
+		}
+	}
+
+	/**
+	 * Output the data container as a multidimensional array.
+	 *
+	 * @return array
+	 */
+	public function toArray() {
+		$data = $this->container;
+		foreach ( $data as $key => $value ) {
+			if ( $value instanceof self ) {
+				$data[ $key ] = $value->toArray();
+			}
+		}
+		return $data;
+	}
+
+	/**
+	* ArrayAccess Implementation
+	**/
+
+	/**
+	 * Whether a offset exists
+	 *
+	 * @link http://php.net/manual/en/arrayaccess.offsetexists.php
+	 *
+	 * @param mixed $offset An offset to check for.
+	 *
+	 * @return boolean true on success or false on failure.
+	 */
+	public function offsetExists( $offset ) {
+		return isset( $this->container[ $offset ]) ;
+	}
+
+	/**
+	 * Offset to retrieve
+	 *
+	 * @link http://php.net/manual/en/arrayaccess.offsetget.php
+	 *
+	 * @param mixed $offset The offset to retrieve.
+	 *
+	 * @return mixed Can return all value types.
+	 */
+	public function offsetGet( $offset ) {
+		return isset( $this->container[ $offset ] ) ? $this->container[ $offset ] : null;
+	}
+
+	/**
+	 * Offset to set
+	 *
+	 * @link http://php.net/manual/en/arrayaccess.offsetset.php
+	 *
+	 * @param mixed $offset The offset to assign the value to.
+	 * @param mixed $value  The value to set.
+	 *
+	 * @return void
+	 */
+	public function offsetSet( $offset, $data ) {
+		if ( is_array( $data ) ) {
+			$data = new self( $data );
+		}
+		if ( $offset === null ) { // don't forget this!
+			$this->container[] = $data;
+		} else {
+			$this->container[ $offset ] = $data;
+		}
+
+		$this->dirty = true;
+	}
+
+	/**
+	 * Offset to unset
+	 *
+	 * @link http://php.net/manual/en/arrayaccess.offsetunset.php
+	 *
+	 * @param mixed $offset The offset to unset.
+	 *
+	 * @return void
+	 */
+	public function offsetUnset( $offset ) {
+		unset( $this->container[ $offset ] );
+	}
+}