$domain = substr(strrchr($email, "@"), 1); if (!checkdnsrr($domain, 'MX') && !checkdnsrr($domain, 'A')) echo json_encode(['valid' => false, 'message' => 'Domain does not exist']); exit;
// Remove common typos and sanitize public static function sanitize($email) $email = trim($email); $email = filter_var($email, FILTER_SANITIZE_EMAIL); return $email;
// Usage examples $testEmails = [ 'user@example.com', 'invalid-email', 'user@gmail.com', 'user@mailinator.com' ]; check email valid php
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) echo json_encode(['valid' => false, 'message' => 'Invalid email format']); exit;
?> <?php function validateEmailAdvanced($email) // 1. Check format if (!filter_var($email, FILTER_VALIDATE_EMAIL)) return false; // 2. Extract domain $domain = substr(strrchr($email, "@"), 1); $domain = substr(strrchr($email, "@"), 1); if (
<?php function isValidEmail($email) // Basic validation using filter_var if (filter_var($email, FILTER_VALIDATE_EMAIL)) return true; return false;
if (empty($email)) echo json_encode(['valid' => false, 'message' => 'Email is required']); exit; $domain = substr(strrchr($email
if (empty($email)) $error = 'Email is required'; elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) $error = 'Please enter a valid email address'; elseif (!checkdnsrr(substr(strrchr($email, "@"), 1), 'MX')) $error = 'Email domain does not exist'; else $success = 'Valid email address!';