34543),1=>array('price'=>434,'hot'=>234),2=>array('price'=>42,'hot'=>2232),3=>array('price'=>42,'hot'=>235432),4=>array('price'=>33443,'hot'=>12),4=>array('price'=>434,'hot'=>1211),);usort($a, 'xx');echo '';print_r($a);echo '
';>>> 更多内容，请查看 php数组排序方法大全