I have the next multi dimensional array:
Array
(
[0] => Array
(
[id] => 1
[name] => Category 1
[parent] => 0
[children] => Array
(
[0] => Array
(
[id] => 3
[name] => Sub 1
[parent] => 1
[children] => Array
(
)
)
[1] => Array
(
[id] => 4
[name] => Sub 2
[parent] => 1
[children] => Array
(
[0] => Array
(
[id] => 6
[name] => Sub Sub 4
[parent] => 4
[children] => Array
(
)
)
)
)
)
)
[1] => Array
(
[id] => 2
[name] => Category 2
[parent] => 0
[children] => Array
(
[0] => Array
(
[id] => 5
[name] => Sub 3
[parent] => 2
[children] => Array
(
)
)
)
)
)
I need to render this array on page with different indents. For example:
I know that I can use SPL RecursiveArrayIterator for it, but I dont'know how. Can you help me with it, how to render array like this?
You can do this simply by writing a function and calling it recursively like so:
<?php
function list_items($data)
{
echo '<ul>';
foreach ($data as $cat)
{
echo '<li>'.$cat['name'];
if (count($cat['children']) > 0)
{
list_items($cat['children']);
}
echo '</li>';
}
echo '</ul>';
}
$array = array(
array(
'id' => 1,
'name' => 'Category 1',
'parent' => 0,
'children' => array(
array(
'id' => 3,
'name' => 'Category 3',
'parent' => 1,
'children' => array()
),
array(
'id' => 4,
'name' => 'Category 4',
'parent' => 1,
'children' => array(
array(
'id' => 5,
'name' => 'Category 5',
'parent' => 4,
'children' => array()
),
array(
'id' => 6,
'name' => 'Category 6',
'parent' => 4,
'children' => array()
)
)
)
)
),
array(
'id' => 2,
'name' => 'Category 2',
'parent' => 0,
'children' => array(
array(
'id' => 7,
'name' => 'Category 7',
'parent' => 2,
'children' => array()
)
)
)
);
list_items($array);
Produces:
<ul>
<li>Category 1
<ul>
<li>Category 3</li>
<li>
Category 4
<ul>
<li>Category 5</li>
<li>Category 6</li>
</ul>
</li>
</ul>
</li>
<li>
Category 2
<ul>
<li>Category 7</li>
</ul>
</li>
</ul>