PHP remove multidimensional array key on multiple conditions - php

Question

I have a below PHP array in which you can see category/sub-category structure based on "parent_id" & "parent" element.
Now the requirement is, on the basis of "menu_display_special = 1" condition, I want to delete that key as well as the keys which have this key's id as parent_id.
Note: If the "menu_display_special = 1" condition matches, it should remove the keys from category & sub-categories(if any) from the array.
Result should return only one array element. i.e. id = 2378
Array
(
[35] => Joomla\CMS\Menu\MenuItem Object
(
[id] => 2375
[params:protected] => Joomla\Registry\Registry Object
(
[data:protected] => stdClass Object
(
[menu_display_special] => 1
)
)
[parent_id] => 2376
[parent] =>
)
[36] => Joomla\CMS\Menu\MenuItem Object
(
[id] => 2377
[params:protected] => Joomla\Registry\Registry Object
(
[data:protected] => stdClass Object
(
)
)
[parent_id] => 2376
[parent] => 1
)
[37] => Joomla\CMS\Menu\MenuItem Object
(
[id] => 2379
[params:protected] => Joomla\Registry\Registry Object
(
[data:protected] => stdClass Object
(
[menu_display_special] => 1
)
)
[parent_id] => 2377
[parent] =>
)
[38] => Joomla\CMS\Menu\MenuItem Object
(
[id] => 2380
[params:protected] => Joomla\Registry\Registry Object
(
[data:protected] => stdClass Object
(
[menu_display_special] => 1
)
)
[parent_id] => 2377
[parent] =>
)
[39] => Joomla\CMS\Menu\MenuItem Object
(
[id] => 2381
[params:protected] => Joomla\Registry\Registry Object
(
[data:protected] => stdClass Object
(
[menu_display_special] => 1
)
)
[parent_id] => 2377
[parent] =>
)
[40] => Joomla\CMS\Menu\MenuItem Object
(
[id] => 2378
[params:protected] => Joomla\Registry\Registry Object
(
[data:protected] => stdClass Object
(
)
)
[parent_id] => 2376
[parent] =>
)
)
Code After var_export :
array (
35 =>
Joomla\CMS\Menu\MenuItem::__set_state(array(
'id' => '2375',
'params' =>
Joomla\Registry\Registry::__set_state(array(
'data' =>
stdClass::__set_state(array(
'menu_display_special' => '1',
)),
)),
'parent_id' => '2376',
'parent' => false,
)),
36 =>
Joomla\CMS\Menu\MenuItem::__set_state(array(
'id' => '2377',
'params' =>
Joomla\Registry\Registry::__set_state(array(
'data' =>
stdClass::__set_state(array(
'menu_display_special' => '1',
)),
)),
'parent_id' => '2376',
'parent' => true,
)),
37 =>
Joomla\CMS\Menu\MenuItem::__set_state(array(
'id' => '2379',
'params' =>
Joomla\Registry\Registry::__set_state(array(
'data' =>
stdClass::__set_state(array(
'menu_display_special' => '1',
)),
)),
'parent_id' => '2377',
'parent' => false,
)),
38 =>
Joomla\CMS\Menu\MenuItem::__set_state(array(
'id' => '2380',
'params' =>
Joomla\Registry\Registry::__set_state(array(
'data' =>
stdClass::__set_state(array(
'menu_display_special' => '1',
)),
)),
'parent_id' => '2377',
'parent' => false,
)),
39 =>
Joomla\CMS\Menu\MenuItem::__set_state(array(
'id' => '2381',
'params' =>
Joomla\Registry\Registry::__set_state(array(
'data' =>
stdClass::__set_state(array(
)),
)),
'parent_id' => '2377',
'parent' => false,
)),
40 =>
Joomla\CMS\Menu\MenuItem::__set_state(array(
'id' => '2378',
'params' =>
Joomla\Registry\Registry::__set_state(array(
'data' =>
stdClass::__set_state(array(
)),
)),
'parent_id' => '2376',
'parent' => false,
)),
)
Coding attempt : but it returns 2 array element i.e. 2381 & 2378. It should give me only 2378 as 2381 is child of 2377( which has menu_display_special value 1)
$listArray = array_filter($list,
function($v) use($list) {
return $v->params->get('menu_display_special') != '1' && ($v->parent == TRUE || $list[$v->parent_id]['params']['menu_display_special'] != '1');
}
);

Answer 1

I'm not sure if your design requirements allow me to merge the conditions in my recursive function, so I've kept them separate to try to be ultimately accurate.
There is no return value and $array is preceded by a & to make it modify the originally passed input array.
Code (Demo)
function recurse(&$array, $pid = null) {
foreach ($array as $id => $item) {
if (isset($item->params->data->menu_display_special) && $item->params->data->menu_display_special == 1) {
unset($array[$id]);
recurse($array, $item->id);
} elseif ($item->parent_id === $pid) {
unset($array[$id]);
}
}
}
$list = [
35 => (object)[
'id' => '2375',
'params' => (object)[
'data' => (object)[
'menu_display_special' => '1'
]
],
'parent_id' => '2376',
'parent' => false
],
36 => (object)[
'id' => '2377',
'params' => (object)[
'data' => (object)[
'menu_display_special' => '1'
]
],
'parent_id' => '2376',
'parent' => false
],
37 => (object)[
'id' => '2379',
'params' => (object)[
'data' => (object)[
'menu_display_special' => '1'
]
],
'parent_id' => '2377',
'parent' => false
],
38 => (object)[
'id' => '2380',
'params' => (object)[
'data' => (object)[
'menu_display_special' => '1'
]
],
'parent_id' => '2377',
'parent' => false
],
39 => (object)[
'id' => '2381',
'params' => (object)[
'data' => (object)[]
],
'parent_id' => '2377',
'parent' => false
],
40 => (object)[
'id' => '2378',
'params' => (object)[
'data' => (object)[]
],
'parent_id' => '2376',
'parent' => false
],
];
recurse($list);
var_export($list);
Output:
array (
40 =>
(object) array(
'id' => '2378',
'params' =>
(object) array(
'data' =>
(object) array(
),
),
'parent_id' => '2376',
'parent' => false,
),
)