Validate Email Address Php [patched] -

function validateEmailRegex($email) // Basic regex – not as comprehensive as filter_var $pattern = "/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]2,$/"; return preg_match($pattern, $email) === 1;

While filter_var() is preferred, regex can be useful for custom rules: validate email address php

// Usage examples $emails = [ "user@example.com", "invalid-email", "user@localhost", "user+filter@example.co.uk" ]; $email) === 1

foreach ($emails as $email) $result = validateEmailAdvanced($email, true); echo "$email: $result['message']\n"; While filter_var() is preferred

// Optional DNS check if ($checkDNS) $domain = substr(strrchr($email, "@"), 1); if (!checkdnsrr($domain, 'MX') && !checkdnsrr($domain, 'A')) return ['valid' => false, 'message' => 'Domain has no mail server'];