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

When handling email addresses in PHP scripts, it is important to validate the email address input to ensure it is in the correct format. One common way to do this is by using PHP's built-in filter_var function with the FILTER_VALIDATE_EMAIL filter. This will check if the email address is valid according to RFC 822 standards. 

$email = $_POST['email'];

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    // Email address is valid
    // Proceed with your code here
} else {
    // Email address is not valid
    // Handle the error accordingly
}

Keywords

validation sanitization filter_var PHPMailer SMTP

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