Reindex PHP Nested Array - arrays

Question

After printing my $my_values['outer_group']['fieldset'] I'm getting the following output as per the data:
Array
(
[fieldset] => Array
(
[1] => Array
(
[title] => Dummy_Value1
[inner_group] => Array
(
[fieldset] => Array
(
[1] => Array
(
[id] => 11
[title] => Dummy_Value11
)
[2] => Array
(
[id] => 12
[title] => Dummy_Value12
)
[3] => Array
(
[id] => 13
[title] => Dummy_Value13
)
[actions] => Array
(
[add] => Add InnerGroup
[remove] => Remove InnerGroup
)
)
)
)
[2] => Array
(
[title] => Dummy_Value2
[inner_group] => Array
(
[fieldset] => Array
(
[1] => Array
(
[id] => 21
[title] => Dummy_Value21
)
[actions] => Array
(
[add] => Add InnerGroup
)
)
)
)
[actions] => Array
(
[add] => Add OuterGroup
[remove] => Remove OuterGroup
)
)
)
My requirement is to re-index the output data, hence I've performed the following code to re-index the same:
<?php
if (isset($my_values['outer_group']) && !empty($my_values['outer_group'])) {
$outer_types = $my_values['outer_group']['fieldset'];
$inner = [];
foreach ($outer_types as $outer_key => $outer_value) {
if (is_numeric($outer_key)) {
if (isset($outer_value['inner_group']['fieldset'])) {
foreach ($outer_value['inner_group']['fieldset'] as $k => $v) {
if (is_numeric($k)) {
$inner[] = [
'id' => $v['id'],
'title' => !empty($v['title']) ? $token->replace($v['title']) : NULL,
];
}
}
}
$my_values['outer'][$outer_key] = [
'title' => !empty($outer_value['title']) ? $token->replace($outer_value['title']) : NULL,
'inner' => $inner,
];
}
}
}
As per the output its getting re-indexed but with some errors in data. I'm getting trouble while populating the [inner] data, following is the output for the same:
Array
(
[0] => Array
(
[title] => Dummy_Value1
[inner] => Array
(
[0] => Array
(
[id] => 11
[title] => Dummy_Value11
)
[1] => Array
(
[id] => 12
[title] => Dummy_Value12
)
[2] => Array
(
[id] => 13
[title] => Dummy_Value13
)
)
)
[1] => Array
(
[title] => Dummy_Value2
[inner] => Array
(
[0] => Array
(
[id] => 11
[title] => Dummy_Value11
)
[1] => Array
(
[id] => 12
[title] => Dummy_Value12
)
[2] => Array
(
[id] => 13
[title] => Dummy_Value13
)
[3] => Array
(
[id] => 21
[title] => Dummy_Value21
)
)
)
)
Whereas, it should be:
Array
(
[0] => Array
(
[title] => Dummy_Value1
[inner] => Array
(
[0] => Array
(
[id] => 11
[title] => Dummy_Value11
)
[1] => Array
(
[id] => 12
[title] => Dummy_Value12
)
[2] => Array
(
[id] => 13
[title] => Dummy_Value13
)
)
)
[1] => Array
(
[title] => Dummy_Value2
[inner] => Array
(
[0] => Array
(
[id] => 21
[title] => Dummy_Value21
)
)
)
)

Answer 1

$inner = []; needs to be within the foreach loop so that it is empty before building each internal element.
Untested - but as follows:
<?php
if (isset($my_values['outer_group']) && !empty($my_values['outer_group'])) {
$outer_types = $my_values['outer_group']['fieldset'];
foreach ($outer_types as $outer_key => $outer_value) {
$inner = [];
if (is_numeric($outer_key)) {
if (isset($outer_value['inner_group']['fieldset'])) {
foreach ($outer_value['inner_group']['fieldset'] as $k => $v) {
if (is_numeric($k)) {
$inner[] = [
'id' => $v['id'],
'title' => !empty($v['title']) ? $token->replace($v['title']) : NULL,
];
}
}
}
$my_values['outer'][$outer_key] = [
'title' => !empty($outer_value['title']) ? $token->replace($outer_value['title']) : NULL,
'inner' => $inner,
];
}
}
}