Extract array with same name from multidimensional array - php

Question

I have this Array from a json that represent a form. I have to collect all the [components] in a new array
Array
(
[components] => Array
(
[0] => Array
(
[key] => number1
[type] => number
[input] => 1
[label] => Test Number Field
)
[1] => Array
(
[key] => testRadioFiled
[type] => radio
[label] => Test Radio Filed
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
[shortcut] =>
)
)
)
[2] => Array
(
[key] => testSelectBoxField
[type] => selectboxes
[input] => 1
[label] => Test Select Box Field
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
[shortcut] =>
)
)
)
[3] => Array
(
[key] => testSelectField
[data] => Array
(
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
)
)
)
[type] => select
[input] => 1
[label] => Test Select Single Field
)
[4] => Array
(
[key] => testPanel
[type] => panel
[input] =>
[label] => Panel
[title] => Test Panel
[components] => Array
(
[0] => Array
(
[key] => testSelectMultipleField
[data] => Array
(
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
)
[1] => Array
(
[label] => Second
[value] => second
)
[2] => Array
(
[label] => Third
[value] => third
)
)
)
[mask] =>
[sort] =>
[type] => select
[input] => 1
[label] => Test Select Multiple Field
)
[1] => Array
(
[key] => testColumns
[type] => columns
[label] => Test Columns
[columns] => Array
(
[0] => Array
(
[key] => column
[type] => column
[label] => Column
[components] => Array
(
[0] => Array
(
[key] => radio
[type] => radio
[input] => 1
[label] => Radio
[values] => Array
(
[0] => Array
(
[label] => first
[value] => first
[shortcut] =>
)
[1] => Array
(
[label] => second
[value] => second
[shortcut] =>
)
[2] => Array
(
[label] => third
[value] => third
[shortcut] =>
)
)
)
)
)
[1] => Array
(
[key] => column
[type] => column
[label] => Column
[components] => Array
(
[0] => Array
(
[key] => testSelectField2
[tab] => 1
[data] => Array
(
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
)
[1] => Array
(
[label] => Second
[value] => second
)
[2] => Array
(
[label] => Third
[value] => third
)
)
)
[type] => select
[input] => 1
[label] => Test Select Single Field
)
)
)
)
)
)
[collapsible] =>
)
[5] => Array
(
[key] => tabs2
[mask] =>
[type] => tabs
[input] =>
[label] => Tabs
[components] => Array
(
[0] => Array
(
[key] => tab2
[label] => Tab 1
[components] => Array
(
[0] => Array
(
[key] => columns2
[tab] => 0
[mask] =>
[type] => columns
[input] =>
[label] => Columns
[logic] => Array
(
)
[columns] => Array
(
[0] => Array
(
[key] => column
[type] => column
[input] =>
[label] => Column
[components] => Array
(
[0] => Array
(
[key] => number4
[type] => number
[input] => 1
[label] => Test Number Field in Column
)
)
)
[1] => Array
(
[key] => column
[type] => column
[input] =>
[label] => Column
[components] => Array
(
[0] => Array
(
[key] => number3
[type] => number
[input] => 1
[label] => Test Number Field in Column
)
)
)
)
)
)
)
[1] => Array
(
[key] => tab2
[label] => Tab 2
[components] => Array
(
[0] => Array
(
[key] => testSelectField1
[tab] => 1
[data] => Array
(
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
)
[1] => Array
(
[label] => Second
[value] => second
)
[2] => Array
(
[label] => Third
[value] => third
)
)
)
[type] => select
[input] => 1
[label] => Test Select Single Field
)
)
)
)
)
)
)
I solved making a serious of foreach and in each loop I used logic:
If not exist an array "components" -> check if is type columns
if yes check if exist "components" and saved in new array
if not save in new array
If exist again check apply the same condition of point 1 this for 3 or 4 sublevel.
This is the final array that I need
Array
(
[0] => Array
(
[key] => number1
[type] => number
[input] => 1
[label] => Test Number Field
)
[1] => Array
(
[key] => testRadioFiled
[type] => radio
[label] => Test Radio Filed
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
[shortcut] =>
)
)
)
......
[2] => Array
(
[key] => testSelectMultipleField
[data] => Array
(
[values] => Array
(
[0] => Array
(
[label] => First
[value] => first
)
[1] => Array
(
[label] => Second
[value] => second
)
[2] => Array
(
[label] => Third
[value] => third
)
)
)
[mask] =>
[sort] =>
[type] => select
[input] => 1
[label] => Test Select Multiple Field
)
}
This code make the job but can't be the final solution.
$test_array = Array();
foreach($data['components'] AS $comp_1){
if(!isset($comp_1['components'])){
if($comp_1['type'] != 'columns'){
$test_array[] = $comp_1;
} else {
foreach($comp_1['columns'] as $col_1){
if(!isset($col_1['components'])){
$test_array[] = $col_1;
} else {
foreach($col_1['components'] AS $col_comp_1){
if(!isset($col_comp_1['components'])){
$test_array[] = $col_comp_1;
}
}
}
}
}
} else {
foreach($comp_1['components'] AS $comp_2){
if(!isset($comp_2['components'])){
if($comp_2['type'] != 'columns'){
$test_array[] = $comp_2;
} else {
foreach($comp_2['columns'] as $col_2){
if(!isset($col_2['components'])){
$test_array[] = $col_2;
} else {
foreach($col_2['components'] AS $col_comp_2){
if(!isset($col_comp_2['components'])){
$test_array[] = $col_comp_2;
}
}
}
}
}
} else {
foreach($comp_2['components'] AS $comp_3){
if(!isset($comp_3['components'])){
if($comp_3['type'] != 'columns'){
$test_array[] = $comp_3;
} else {
foreach($comp_3['columns'] as $col_3){
if(!isset($col_3['components'])){
$test_array[] = $col_3;
} else {
foreach($col_3['components'] AS $col_comp_3){
if(!isset($col_comp_3['components'])){
$test_array[] = $col_comp_3;
}
}
}
}
}
}
}
}
}
}
}
My question is there is a way for extract all the "components" array that of coarse take care if not contain other "components" array ?

Answer 1

If I understood you correctly recursion can help:
function extractComponents($arrayWithComponents)
{
$components = [];
if (!isset($arrayWithComponents['components']) || !is_array($arrayWithComponents['components'])) {
return $components;
}
foreach ($arrayWithComponents['components'] as $component) {
if (isset($component['columns'])) {
foreach ($component['columns'] as $column) {
$components = array_merge($components, extractComponents($column));
}
} else {
$components = array_merge($components, extractComponents($component));
unset($component['components']);
$components[] = $component;
}
}
return $components;
}
var_dump(extractComponents($data));
Example.