PHP - Set array key only if the value is not null - php

Question

Is there a shorter solution for something like this?
$manufacturer = array();
if(!is_null($params->get('name'))){
$manufacturer['name'] = $params->get('name');
}
if(!is_null($params->get('link'))){
$manufacturer['link'] = $params->get('link');
}
if(!is_null($params->get('description'))){
$manufacturer['description'] = $params->get('description');
}
...
So a key of an array should only be set with the value if the value is not null. This is a bit shorter, but with this solution the keys will exist with the value NULL. But they should not even exist when the value was NULL:
$manufacturer = array(
'name' => !is_null($params->get('name')) ? $params->get('name') : null,
'link' => !is_null($params->get('link')) ? $params->get('link') : null,
'description' => !is_null($params->get('description')) ? $params->get('description') : null
);
EDIT:
It should work for multidimensional arrays and the array keys and param keys may vary

Answer 1

for #u_mulder foreach and #Nono array_filter solutions they work only for simple array, they do not remove null values from multidimensional arrays,
try this recursive function:
<?php
/**
just keep your array like this:
$manufacturer = array(
'name' => $params->get('name'),
'link' => $params->get('link'),
'description' => $params->get('description'),
'attribute' => array (
'street' => $params->get('street'),
...
)
...
);
**/
$manufacturer = [
'name' => 'yoeunes',
'link' => null,
'description' => 'fake description',
'attribute' => [
'street' => null,
'city' => 'Marrakech',
],
];
function array_remove_null($array)
{
foreach ($array as $key => $value) {
if (is_array($value)) {
$array[$key] = array_remove_null($array[$key]);
}
if (is_null($array[$key])) {
unset($array[$key]);
}
}
return $array;
}
echo "<pre>";
print_r(array_remove_null($manufacturer));
output:
Array
(
[name] => yoeunes
[description] => fake description
[attribute] => Array
(
[city] => Marrakech
)
)

Answer 2

$keys = ['name', 'link', ....];
foreach ($keys as $key) {
if(!is_null($params->get($key))){
$manufacturer[$key] = $params->get($key);
}
}

Answer 3

The foreach solutions are possible, but since the array key and params key may vary and because I have another array with values within this array, this is maybe a better solution, or what do you think?
$manufacturer = array(
'name' => !is_null($params->get('name')) ? $params->get('name') : false,
'link' => !is_null($params->get('link')) ? $params->get('link') : false,
'description' => !is_null($params->get('description')) ? $params->get('description') : false,
'attribute' => array (
'street' => !is_null($params->get('street')) ? $params->get('street') : false,
...
)
...
);
$manufacturer = array_filter($manufacturer);
array_filter (without callback) will remove all keys with false. (It's possible as long I don't have boolean values for my keys. If so you can do the same with NULL and then use a callback for array_filter)