What are common pitfalls when validating email addresses in PHP forms?

One common pitfall when validating email addresses in PHP forms is not using the appropriate validation function to ensure the email address is in the correct format. To solve this, you can use the filter_var() function with the FILTER_VALIDATE_EMAIL filter to validate email addresses. 

$email = $_POST['email'];

if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Invalid email address";
} else {
    echo "Valid email address";
}

Keywords

filter_var email validation regex error handling form validation

Related Questions