public function testXAIintersectWithKeyValueCallback()
{
$xao = new XArray(['x' => 1, 'ab' => 2, 'z' => 3]);
$obj = $xao->xaintersect(['xy' => 5, 'z' => 11], 'length_compare_func', 'length_compare_func');
$this->assertEquals(['xy' => 5], (array) $obj);
}
