Are there any best practices for securely handling email addresses in PHP scripts?

When handling email addresses in PHP scripts, it is important to ensure that the data is securely stored and processed to prevent any potential security risks such as SQL injection or data leakage. One best practice is to sanitize and validate the email address input to prevent any malicious input. Additionally, consider using secure methods for storing email addresses, such as encryption, and avoid displaying email addresses in plain text on web pages to prevent email harvesting. 

// Sanitize and validate email address input
$email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
    // Handle invalid email address input
}

// Securely store email address using encryption
$encryptedEmail = password_hash($email, PASSWORD_DEFAULT);

// Avoid displaying email addresses in plain text on web pages
echo 'Your email address is: ' . htmlspecialchars($email);

Keywords

PHP email addresses security encryption validation

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