nested category laravel

public static function getCategories(){
        $get_categories = [];
        $categories = \App\BlogCategory::all();
        foreach ($categories as $category) {
            if($category->parent_id == null){// parent category
                $get_categories[$category->id] = $category;
            } else {
                $get_categories[$category->parent_id]['chidren'] = $category;
            }
        }
        return $categories;
    }

    public static function make_index_id($source){
        $id_indexed_array = [];
        foreach ($source as $value) {
            $id_indexed_array[$value['id']] = $value;
        }
        return $id_indexed_array;
    }

    // public static function makeBreadCump($source){
    //     $nested = self::nestedCategories($source);
    //     return $nested;

    //     $bread = [];
    //     foreach ($source as $key => $category) {
    //         if($key == 0){
    //             if($category->parent_id){

    //             }
    //             $bread[] = $category['name'];
    //         }
    //     }
    //     dd($bread);
    //     return $bread;
    // }

    // public static function makeBreadCump($source){
    //     $nested = self::nestedCategories($source);
    //     dd($source);
    //     $bread = [];
    //     self::getBreadCumpArray($nested);
    //     return self::$bread;
    // }

    // public static function getBreadCumpArray($nested){
    //     // dd($nested);

    //     foreach ($nested as $key => $nest) {
    //         // dd($nest);
    //         if($key == 0){
    //             if(array_key_exists('children', $nest)){
    //                 // dd($nest['children']);
    //                 // self::$bread[] = 'hd';
    //                     self::$bread[] = $nest['name'];
    //                     self::getBreadCumpArray($nest['children']);
    //                 // self::$bread[] = $nest['children'][0]['name'];
    //             } else {
    //                 // dd($nest['name']);
    //                 self::$bread[] = $nest['name'];
    //             }
    //         }

    //     }
    // }

    public static function getNestedCategories(){
        $source = \App\BlogCategory::all();
        return self::nestedCategories($source);
    }

    public static function nestedCategories($source) {
        $nested = [];
        $source = $source->toArray();
        // return $source;
        $indexed_id_array = self::make_index_id($source);

        foreach ( $indexed_id_array as &$s ) {
            if ( is_null($s['parent_id']) ) {
                // no parent_id so we put it in the root of the array
                $nested[] = &$s;
            }
            else {
                $pid = $s['parent_id'];
                if ( isset($indexed_id_array[$pid]) ) {
                // dd($pid);
                    // If the parent ID exists in the indexed_id_array array
                    // we add it to the 'children' array of the parent after initializing it.

                    if ( !isset($indexed_id_array[$pid]['children']) ) {
                        $indexed_id_array[$pid]['children'] = array();
                    }

                    $indexed_id_array[$pid]['children'][] = &$s;
                }
            }
        }
        return $nested;
    }


    static function fetchNestedCategories($arr, $field_name='categories', $active_list=[], $indent='') {
        // dd($active_list);
        if ($arr) {
            foreach ($arr as $key => $value) {
                if (is_array($value)) {
                    //
                    self::fetchNestedCategories($value, $field_name, $active_list, $indent . '  ');
                } else {
                    if($key == 'id'){
                        if(in_array($arr[$key], $active_list)){
                            $checked = 'checked';
                        } else{
                            $checked = '';
                        }


                        echo '<li>' . $indent . '<label><input value="'.$arr[$key].'" type="checkbox" name="'.$field_name.'[]" '. $checked.'>'.$arr['name'].'</label></li>';
                        // echo "$indent $value <br />";
                    }
                }
            }
        }
    }