PHP list arrays - php

Question

Is it possible to list arrays from an array with function?
I have configuration array of a plugin in which I wast to call function which will list arrays from array.
'fields' => array(
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something')
)
I made function:
function config(){
$a = array('id'=>'someidA','id'=>'somethingA');
$b = array('id'=>'someidB','id'=>'somethingB');
return array($a,$b);
}
When call config() function in array I get:
'fields' => array(
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something'),
array(
array('id'=>'someidA','id'=>'somethingA'),
array('id'=>'someidB','id'=>'somethingB')
)
)
But I need:
'fields' => array(
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something'),
array('id'=>'someidA','id'=>'somethingA'),
array('id'=>'someidB','id'=>'somethingB')
)
I know this works:
'fields' => array(
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something'),
array('id'=>'someid','id'=>'something'),
list($a,$b)=config(),
$a,$b,
)
But it does not help me too much, as sometime there are lot of $a,$,$c,$d etc, so it will be the best if somehow function could list those arrays.
Is there some ways to get rid of that container array and list arrays directly to another array?

Answer 1

array_merge will work for you. It merges 2 or more arrays into a single array.
<?php
$arr = array(
'fields' => array(
array('id1'=>'someid','id2'=>'something'),
array('id1'=>'someid','id2'=>'something'),
array('id1'=>'someid','id2'=>'something')
)
);
function config(){
$a = array('id1'=>'someidA','id2'=>'somethingA');
$b = array('id1'=>'someidB','id2'=>'somethingB');
return array($a,$b);
}
$config_arr = config();
$arr['fields'] = array_merge($arr['fields'], $config_arr);
print_r($arr);
?>
Working Example.
OUTPUT
Array
(
[fields] => Array
(
[0] => Array
(
[id1] => someid
[id2] => something
)
[1] => Array
(
[id1] => someid
[id2] => something
)
[2] => Array
(
[id1] => someid
[id2] => something
)
[3] => Array
(
[id1] => someidA
[id2] => somethingA
)
[4] => Array
(
[id1] => someidB
[id2] => somethingB
)
)
)

Answer 2

As an alternative to Samir's solution...
By using the "splat operator" (...) to unpack the returned array from config() and then array_push() to append both subarrays, you can achieve the desired result.
Code: (Demo)
$config = [
'fields' => [
['id1' => 'someid', 'id2' => 'something'],
['id1' => 'someid', 'id2' => 'something'],
['id1' => 'someid', 'id2' => 'something']
]
];
function config() {
$a = ['id1' => 'someidA','id2' => 'somethingA'];
$b = ['id1' => 'someidB','id2' => 'somethingB'];
return [$a, $b];
}
array_push($config['fields'], ...config());
var_export($config);