$domain = "gmail.com"; if (domainExists($domain)) echo "Domain has valid mail records."; else echo "Domain cannot receive emails.";
Before we query the internet to see if a domain exists, we need to ensure the input is clean. PHP provides a native, battle-tested solution that is far superior to custom regex: the filter_var function. validate email domain php
// Extract domain $domain = substr(strrchr($email, "@"), 1); $domain = "gmail
Wrong.
catch (Exception $e) return ["success" => false, "message" => $e->getMessage()]; $domain = "gmail.com"
