Merge/Sort Array by Name - php

Question

I try to sort an array by name. I want to create a structure similar to a menu. First, I allow a function to write values into the array. Then I would like to assign all subpages to the parent (resulting from the structure, such as a URL).
Out
array
(
[0] => array
(
[Pages] => coreViewSites
)
[1] => array
(
[Pages / Create] => create coreView
)
[2] => array
(
[Pages / Duplicate] => coreViewSites
)
[3] => array
(
[Pages / Anarchy] => coreViewSites
)
[4] => array
(
[User] => coreViewUser
)
)
should an array like
array
(
[Pages] => Array
(
[0] => ABC
[Create] => ABC
[Duplicate] => ABC
[Anarchy] => ABC
)
[User] => ABC
)
become.
Do you have an idea how I could solve this?

Answer 1

Assuming the menu items are ordered with parents coming before children, here is how you could do that:
$menu = [];
foreach($input as $path) {
$keys = explode(" / ", key($path)); // Extract the individual menu titles
$last = array_pop($keys); // Pull the last one from it
$loc = &$menu;
foreach($keys as $key) {
// Create menu item if it does not exist yet
if (!isset($loc[$key])) $loc[$key] = [];
// When a menu gets sub-menu, move the title in index 0 of a new array
if (!is_array($loc[$key])) $loc[$key] = [$loc[$key]];
$loc = &$loc[$key]; // Set the pointer to that submenu
}
$loc[$last] = reset($path); // At the deepest level assign the menu title.
}
// Print result:
var_export($menu);
Output:
array (
'Pages' => array (
0 => 'coreViewSites',
'Create' => 'create coreView',
'Duplicate' => 'coreViewSites',
'Anarchy' => 'coreViewSites',
),
'User' => 'coreViewUser',
)