public function onLoad(DotArray $incoming, $prefix = null)
{
$options_key = $prefix ? $prefix . '._options' : '_options';
$incoming_options = $incoming->exists($options_key) ? $incoming->get($options_key) : [];
$this->options = array_merge($this->options, $incoming_options);
$incoming->remove($options_key);
}
public function testExists()
{
$d = new DotArray($this->arr);
$this->assertTrue($d->exists('one'));
$this->assertTrue($d->exists('two.two'));
$this->assertFalse($d->exists('foo.bar'));
$d->set('two.two', false);
$this->assertTrue($d->exists('two.two'));
$d->remove('two.two');
$this->assertFalse($d->exists('two.two'));
$d->set('two.two', null);
$this->assertFalse($d->exists('two.two'));
}