How to perform Recursion to Nth level? - php

Question

Here is my single database structure.
I have one array which I will export in one file by var_export.
This is a sample array,
return [
'menus' => [
'products' => [
'name' => 'Products',
'link' => 'cctv.html',
'show' => true,
],
'companies' => [
'name' => 'Companies',
'link' => 'companies.html',
'show' => true,
],
],
'products' => [
'section_enabled' => [
'featured_products', 'categories', 'news', 'latest_products', 'case_studies', 'expert_commentary',
'videos', 'companies', 'topics',
],
'pages' => [
'child_category_page' => [
'middle' => [
'left' => [
'class' => 'col-md-9',
'sections' => [
[
'folder' => '',
'element' => 'page_heading',
'variables' => ['page_heading', 'articles'],
],
],
],
],
],
'product_profile_page' => [
'middle' => [
'left' => [
'class' => 'col-md-9',
'sections' => [
[
'folder' => '',
'element' => 'page_heading',
'variables' => ['page_heading'],
],
[
'folder' => 'products',
'element' => 'specifications',
'variables' => ['specifications', 'filters'],
],
],
],
],
],
],
],
'news' => [
'news_types' => [
'expert_commentary' => 'Etary',
'applications' => 'Mon',
'security_beat' => 'SB',
'round_table' => 'RT',
'case_studies' => [
'type' => 'Marcation',
'label' => 'Casies',
],
],
'url_lookup_values' => [
'caudies' => [
'value' => 'Marklication',
'config' => 'castudies',
],
],
],
];
I got the recursion trick from here.
But it doesn't solve my problem.
Here is what I have tried,
function generate_site_config()
{
$data = DB::table("SITE_CONFIGS")->where("parent_id", 0)->get();
$desired_array = [];
get_tree_site_configs($data,$desired_array,0,0);
// file_put_contents(config_path() . DIRECTORY_SEPARATOR . "frontend_configs_demo.php", '<?php return ' . var_export($data, true) . ';');
echo "success";die;
}
function get_tree_site_configs($inputArray, &$outputArray, $parent = 0, $level = 0){
foreach($inputArray as $cc_id => $sub_arr){
if($sub_arr->parent_id == $parent){
$outputArray[] = $sub_arr;
if($sub_arr->variable_value == ''){
$inputArray = DB::table("SITE_CONFIGS")->where("parent_id", $sub_arr->id)->get();
get_tree_site_configs($inputArray, $outputArray, $sub_arr->id, $level + 1);
}else{
pr($sub_arr);
pr($outputArray);die;
}
}
}
}
NOTE: chain will go until variable_value == '', if variable_value found then it stops the tree at that end, then it will look for other parents which are dangling.