Insert values inside multidimensional array - php

Question

In my PHP application, get the results from DB. After processing the results I need to convert the results like below using foreach
Array
(
[1] => Array -----> This is intent 1, this key indicates all intent values which is equal to 1, should belongs to here.
(
[0] => Array
(
[name] => A
[indent] => 1
)
[1] => Array
(
[name] => B
[indent] => 1
)
)
[2] => Array
(
[0] => Array
(
[name] => B
[indent] => 2
)
[1] => Array
(
[name] => A
[indent] => 2
)
)
[3] => Array
(
[0] => Array
(
[name] => A
[indent] => 3
)
)
)
That I have some intent value common, common intent values are stored in array like array('1'=> array(array[0],array[1]));.
What I tried is
foreach($results as $data){
$root_array[$data['intent']] = array($data);
}
This will replace the old array and insert the last intent value which is common.
I get result like below, the intent 1 and intent 2 are replaced with last data
Array
(
[1] => Array
(
[0] => Array
(
[name] => B
[indent] => 1
)
)
[2] => Array
(
[0] => Array
(
[name] => A
[indent] => 2
)
)
[3] => Array
(
[0] => Array
(
[name] => A
[indent] => 3
)
)
)

Answer 1

In the loop you must check if the current indent has been initialized. If not then create it, else just append the new data to it.
foreach($results as $data) {
if (!isset($root_array[$data['indent']])) {
$root_array[$data['indent']] = array($data);
} else {
$root_array[$data['indent']][] = $data;
}
}