In what situations should $_SERVER["REMOTE_ADDR"] be preferred over $REMOTE_ADDR in PHP scripts?

$_SERVER["REMOTE_ADDR"] should be preferred over $REMOTE_ADDR in PHP scripts when you need to access the IP address of the client accessing your website. This is because $_SERVER["REMOTE_ADDR"] is a superglobal variable that provides the IP address of the client, while $REMOTE_ADDR is not a predefined variable in PHP and may not always be reliable.

$ip_address = $_SERVER["REMOTE_ADDR"];
echo "Client IP Address: " . $ip_address;