What are some common methods for verifying email addresses in PHP registration processes?

Verifying email addresses in PHP registration processes is crucial for ensuring valid user data. Common methods include sending a verification email with a unique link to the user's email address, requiring the user to click on the link to confirm their email, and storing a verification status in the database. 

// Generate a unique verification code
$verification_code = md5(uniqid(rand(), true));

// Send verification email to the user
$to = $email;
$subject = 'Verify Your Email Address';
$message = 'Click the following link to verify your email address: http://example.com/verify.php?code=' . $verification_code;
$headers = 'From: admin@example.com';
mail($to, $subject, $message, $headers);

// Store the verification code in the database
$stmt = $pdo->prepare("INSERT INTO users (email, verification_code) VALUES (?, ?)");
$stmt->execute([$email, $verification_code]);

Keywords

email verification PHP registration validation email validation error handling

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