您可能熟悉print_r的输出:
Hierarchy Object
(
[parent:private] => Hierarchy Object
(
[parent:private] =>
[children:private] => Array
(
)
[level:private] => 0
[price_modes:private] => Array
(
)
[id:protected] =>
[left_id:protected] =>
[right_id:protected] =>
[name:protected] =>
[validationFailures:protected] => Array
(
)
[_new:private] => 1
[_deleted:private] =>
[modifiedColumns:protected] => Array
(
)
)
[level:private] => 1
[price_modes:private] => Array
(
)
)
是否存在任何可以产生HTML的内容,这些内容允许我将父级内容汇总到这样的内容:
Hierarchy Object
(
+ [parent:private] => Hierarchy Object
[level:private] => 1
)
然后点击+?
重新展开它