从不同的数组删除重复的值php [duplicate]

I have problem removing duplicate values from an array I have the following:

$input = explode(' ', $term_single->name);
$result = array_unique($input);
print_r($result);

I got the same value twice

Array ( [0] => QA )
Array ( [0] => QA )

What am I missing?

</div>

Try to use like that.

<?php
$name = $term_single->name;
$input = explode(' ', $name);
$result = array_unique($input);
print_r($result);
?>