reset() method may not work as you expect with ArrayAccess objects.

Using reset($myArrayAccessObject) returns the first property from $myArrayAccessObject, not the first item in the items array.

If you want to use the reset() method to return the first array item, then you can use the following simple workaround:

<?php
class MyArrayAccessObject implements Iterator, ArrayAccess, Countable {
    protected $first = null; //WARNING! Keep this always first.
    protected $items = null;
    private function supportReset() {
      $this->first = reset($this->items); //Support reset().
    }
    // ...
    public function offsetSet($offset, $value) {
        if ($offset === null) {
            $this->items[] = $value;
        }
        else {
            $this->items[$offset] = $value;
        }
        $this->supportReset();
    }
}
?>

Finally, call $this->supportReset() in the end of all methods that change the internal $items array, such as in offsetSet(), offsetUnset() etc.

This way, you can use the reset() method as normally:

<?php
$firstArrayItem = reset($myArrayAccessObject);
?>