<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yiiunit\data\base;

/**
 * ArrayAccessObject
 * Object that extends [[TraversableObject]] and implements `\ArrayAccess`
 * Used for testing support for ArrayAccess object instead of arrays.
 * @author Dmytro Naumenko <d.naumenko.a@gmail.com>
 * @since 2.0.14.1
 */
class ArrayAccessObject extends TraversableObject implements \ArrayAccess
{
    /**
     * Whether a offset exists
     *
     * @link https://secure.php.net/manual/en/arrayaccess.offsetexists.php
     * @param mixed $offset <p>
     * An offset to check for.
     * </p>
     * @return boolean true on success or false on failure.
     * </p>
     * <p>
     * The return value will be casted to boolean if non-boolean was returned.
     * @since 2.0.14.1
     */
    public function offsetExists($offset)
    {
        return isset($this->data[$offset]);
    }

    /**
     * Offset to retrieve
     *
     * @link https://secure.php.net/manual/en/arrayaccess.offsetget.php
     * @param mixed $offset <p>
     * The offset to retrieve.
     * </p>
     * @return mixed Can return all value types.
     * @since 2.0.14.1
     */
    public function offsetGet($offset)
    {
        return $this->data[$offset];
    }

    /**
     * Offset to set
     *
     * @link https://secure.php.net/manual/en/arrayaccess.offsetset.php
     * @param mixed $offset <p>
     * The offset to assign the value to.
     * </p>
     * @param mixed $value <p>
     * The value to set.
     * </p>
     * @return void
     * @since 2.0.14.1
     */
    public function offsetSet($offset, $value)
    {
        $this->data[$offset] = $value;
    }

    /**
     * Offset to unset
     *
     * @link https://secure.php.net/manual/en/arrayaccess.offsetunset.php
     * @param mixed $offset <p>
     * The offset to unset.
     * </p>
     * @return void
     * @since 2.0.14.1
     */
    public function offsetUnset($offset)
    {
        unset($this->data[$offset]);
    }
}
