Description:
------------
In PHP 7.4.9 the script runs with no problem, however, in PHP 8.0.0 beta1, it does not obey LOCALE.

Test script:
---------------
<?php
$arr01 = [ 2.876, 8.0, 18.91, 32.12 ];
echo 'The given ARRAY:<br>';
print_r($arr01);
echo '<br><br>The SUM:<br>';
setlocale(LC_NUMERIC, 'pt-pt', 'pt_PT');
$sarr01 = array_sum($arr01);
echo $sarr01 . '<br>';
?> 

Expected result:
----------------
61,906 

Actual result:
--------------
The SUM (PHP 7.4.9):
61,906 

The SUM (PHP 8.0.0 b1):
61.906