Things done in php8 give errors in php7.

kimdoyeonsa

Failed to load resource: the server responded with a status of 508 ()
500 Internal Server Error.
Things done in php8 give errors in php7.
PHP8 Upgrade Please.

kimdoyeonsa

500 Internal Server Error.
$arr=[...$a,...$b ]; -> $arr=array_merge($a,$b);