/**
* Custom offsetSet() implementation to allow assignment with a null offset to append to the
* chain
*
* @param mixed $offset
* @param mixed $value
* @return void
*/
public function offsetSet($offset, $value)
{
if ($offset === null) {
// $list[] = 'foo' maps to $list->append('foo')
$this->append($value);
} else {
// Use the default implementation
parent::offsetSet($offset, $value);
}
}
