How to add additional values in to array - php

Question

I am trying to make nested categories in Laravel. I have created following models: Category.php, ItemsHelper.php (this one for displaying nested categories).
ItemsHelper.php:
class ItemsHelper {
private $items;
public function __construct($items) {
$this->items = $items;
}
public function htmlList() {
return $this->htmlFromArray($this->itemArray());
}
private function itemArray() {
$result = [];
foreach($this->items as $item) {
if ($item->parent_id == 0) {
$result[$item->title] = $this->itemWithChildren($item);
}
}
return $result;
}
private function childrenOf($item) {
$result = [];
foreach($this->items as $i) {
if ($i->parent_id == $item->id) {
$result[] = $i;
}
}
return $result;
}
private function itemWithChildren($item) {
$result = [];
$children = $this->childrenOf($item);
foreach ($children as $child) {
$result[$child->title] = $this->itemWithChildren($child);
}
return $result;
}
private function htmlFromArray($array) {
$html = '';
foreach($array as $k => $v) {
$html .= "<ul>";
$html .= "<li>" . $k . "</li>";
if(count($v) > 0) {
$html .= $this->htmlFromArray($v);
}
$html .= "</ul>";
}
return $html;
}
}
Then i am printing nested list of data in my index.blade.php:
{{ $itemsHelper->htmlList() }}
However this prints only plain titles and i need to convert them in to a links to my category, e.g. htmlFromArray() method:
$html .= "<li>" . $k . "</li>";
method itemArray():
$result[$item->title] = $this->itemWithChildren($item);
How can i add to this array id of each item?

Answer 1

You should probably change methods itemArray, itemWithChildren and htmlFromArray this way:
private function itemArray()
{
$result = [];
foreach ($this->items as $item) {
if ($item->parent_id == 0) {
$record['title'] = $item->title;
$record['id'] = $item->id;
$record['children'] = $this->itemWithChildren($item);
$result[] = $record;
}
}
return $result;
}
private function itemWithChildren($item)
{
$result = [];
$children = $this->childrenOf($item);
foreach ($children as $child) {
$record['title'] = $child->title;
$record['id'] = $child->id;
$record['children'] = $this->itemWithChildren($child);
$result[] = $record;
}
return $result;
}
private function htmlFromArray($array)
{
$html = '';
foreach ($array as $item) {
$html .= "<ul>";
$html
.=
'<li><a href="/category/' . $item['id'] . '">' . $item['title']
. "</a></li>";
if (count($item['children']) > 0) {
$html .= $this->htmlFromArray($item['children']);
}
$html .= "</ul>";
}
return $html;
}
Now you can store in your arrays id, title and list of element children so you can access iun htmlFromArray all those elements attributes.