// Usage $email = "user@example.com"; if (isValidEmail($email)) echo "Valid email address!"; else echo "Invalid email address!";
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 $success = 'Valid email address!';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) echo json_encode(['valid' => false, 'message' => 'Invalid email format']); exit; check email valid php
if (empty($email)) echo json_encode(['valid' => false, 'message' => 'Email is required']); exit;
?> <?php function validateEmailAdvanced($email) // 1. Check format if (!filter_var($email, FILTER_VALIDATE_EMAIL)) return false; // 2. Extract domain $domain = substr(strrchr($email, "@"), 1); // Usage $email = "user@example
// Usage $email = "user@gmail.com"; if (validateEmailAdvanced($email)) echo "Email is valid and domain exists!"; else echo "Invalid email or domain doesn't exist!";
foreach ($testEmails as $email) $result = EmailValidator::validate($email, true, true); if ($result['valid']) echo "✓ $email is valid\n"; else echo "✗ $email is invalid: $result['error']\n"; // Usage $email = "user@example.com"
<!DOCTYPE html> <html> <head> <title>Email Validation</title> </head> <body> <form method="POST" action=""> <label for="email">Email:</label> <input type="email" name="email" id="email" value="<?php echo htmlspecialchars($email); ?>" required>