What are some common pitfalls when trying to create email addresses with a PHP script on a website?

One common pitfall when creating email addresses with a PHP script is not properly validating the input to ensure it is a valid email format. To solve this, you can use PHP's built-in filter_var function with the FILTER_VALIDATE_EMAIL flag to validate the email address. 

$email = $_POST['email'];

if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Invalid email address";
} else {
    // Proceed with creating the email address
}

Keywords

validation regex SMTP error handling security

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