Sorting stdClass Object in two - php

Question

I want sorting Teams list by "terminland_days" value
I read same question in Stack Overflow https://stackoverflow.com/a/38237197/5006328 but still have problem on this.
This is my PHP (PHP >=7.4) code:
public function display($tpl = null) {
// myval get from other model
//print_r ($myval);
$myval = Array
(
[0] => stdClass Object
(
[id] => 1
[state] => 1
[teams] => {"teams0":{"name":"Jhon","terminland_days":"3"},"teams1":{"name":"Alex","terminland_days":"2"}}
[distance] => 5839.5147520164
)
[1] => stdClass Object
(
[id] => 2
[state] => 1
[teams] => {"teams0":{"name":"Jeff","terminland_days":"12"},"teams1":{"name":"Fred","terminland_days":"1"}}
[distance] => 5839.5147520164
)
);
foreach ($myval as $item) {
$paramsteam = json_decode($item->teams);
foreach ($paramsteam as $team) {
// i want sorting Teams as "terminland_days" value
usort($team, "compare_func");
// error ==> Warning: usort() expects parameter 1 to be array, object given
echo $team->terminland_days;
}
}
}
public function compare_func($a, $b)
{
if ($a->terminland_days == $b->terminland_days) {
return 0;
}
return ($a->terminland_days < $b->terminland_days) ? -1 : 1;
// You can apply your own sorting logic here.
}
as I understand, I must use usort, please help me how I can do it?
When print_r ($team); output:
stdClass Object
(
[name] => Jhon
[terminland_days] => 3
)
stdClass Object
(
[name] => Alex
[terminland_days] => 2
)
stdClass Object
(
[name] => Jeff
[terminland_days] => 12
)
stdClass Object
(
[name] => Fred
[terminland_days] => 1
)

Answer 1

After a few hours of scrutiny, I realized that the best way was to first convert the object to an array and then sort it. so :
$paramsteam = json_decode($item->teams,true);
usort($paramsteam, function ($item1, $item2) {
return $item1['terminland_days'] <=> $item2['terminland_days'];
});
foreach ($paramsteam as $team) {
echo $team['terminland_days'];
}
also #Nico haase thank you