/**
* Creates a new simple choice list.
*
* @param array $choices The array of choices with the choices as keys and
* the labels as values
*/
public function __construct(array $choices)
{
parent::__construct($choices, $choices);
}
/**
* Creates a new simple choice list.
*
* @param array $choices The array of choices with the choices as keys and
* the labels as values. Choices may also be given
* as hierarchy of unlimited depth by creating nested
* arrays. The title of the sub-hierarchy is stored
* in the array key pointing to the nested array.
* @param array $preferredChoices A flat array of choices that should be
* presented to the user with priority.
*/
public function __construct(array $choices, array $preferredChoices = array())
{
// Flip preferred choices to speed up lookup
parent::__construct($choices, $choices, array_flip($preferredChoices));
}