对象转换为数组

/**
* 对象 转 数组
*
* @param object $obj 对象
* @return array
*/
function object_to_array($obj) {
$obj = (array)$obj;
foreach ($obj as $k => $v) {
if (gettype($v) == 'resource') {
return;
}
if (gettype($v) == 'object' || gettype($v) == 'array') {
$obj[$k] = (array)object_to_array($v);
}
}

return $obj;
}