How to Group a multidimensional array - php

Question

How can I group the array based Name Menu Category and Name Menu ? Is there any native php functions are available to do this? I 've searched on google but not yet well understood
(int) 0 => array(
'MenuCategory' => array(
'name' => 'Products'
),
'Menu' => array(
'name' => 'A',
'url' => 'a'
),
'Sub' => array(
'name' => 'A1',
'url' => 'a1'
)
),
(int) 1 => array(
'MenuCategory' => array(
'name' => 'Products'
),
'Menu' => array(
'name' => 'A',
'url' => 'a'
),
'Sub' => array(
'name' => 'A2',
'url' => 'a2'
)
),
(int) 2 => array(
'MenuCategory' => array(
'name' => 'Products'
),
'Menu' => array(
'name' => 'B',
'url' => 'b'
),
'Sub' => array(
'name' => null,
'url' => null
)
),
(int) 3 => array(
'MenuCategory' => array(
'name' => 'Data'
),
'Menu' => array(
'name' => 'A',
'url' => 'a'
),
'Sub' => array(
'name' => null,
'url' => null
)
),
(int) 4 => array(
'MenuCategory' => array(
'name' => 'Data'
),
'Menu' => array(
'name' => 'B',
'url' => 'b'
),
'Sub' => array(
'name' => 'B1',
'url' => 'b1'
)
),
(int) 5 => array(
'MenuCategory' => array(
'name' => 'Data'
),
'Menu' => array(
'name' => 'C',
'url' => 'c'
),
'Sub' => array(
'name' => null,
'url' => null
)
),
(int) 6 => array(
'MenuCategory' => array(
'name' => 'Report'
),
'Menu' => array(
'name' => 'A',
'url' => 'a'
),
'Sub' => array(
'name' => null,
'url' => null
)
),
(int) 7 => array(
'MenuCategory' => array(
'name' => 'Report'
),
'Menu' => array(
'name' => 'B',
'url' => 'b'
),
'Sub' => array(
'name' => null,
'url' => null
)
),
(int) 8 => array(
'MenuCategory' => array(
'name' => 'Report'
),
'Menu' => array(
'name' => 'C',
'url' => 'c'
),
'Sub' => array(
'name' => null,
'url' => null
)
),
This is a result that will be issued later
Products
A
A1
A2
B
Data
A
B
B1
C
Report
A
B
C

Answer 1

if I assume your array variable name is $menu, try this code.
$new = array();
array_map(function($a) use(&$new){
if($a['Sub']['name'])
$new[$a['MenuCategory']['name']][$a['Menu']['name']][$a['Sub']['name']] = $a['Sub']['name'];
else
$new[$a['MenuCategory']['name']][$a['Menu']['name']] = $a['Menu']['name'];
}, $menu);
print_r($new);
and will output
Array
(
[Products] => Array
(
[A] => Array
(
[A1] => A1
[A2] => A2
)
[B] => B
)
[Data] => Array
(
[A] => A
[B] => Array
(
[B1] => B1
)
[C] => C
)
[Report] => Array
(
[A] => A
[B] => B
[C] => C
)
)
Hope this help.

Answer 2

Group them by level first
use foreach to sort them example
foreach ($input_arr as $key => &$entry) {
$level_arr[$entry['level']][$key] = $entry;
}