How does phpMailer handle email address validation before sending an email, and what methods can be used to intercept and display validation errors to users?

To handle email address validation before sending an email using phpMailer, you can use the built-in filter_var function with the FILTER_VALIDATE_EMAIL filter. If the email address is not valid, you can intercept the validation errors and display them to the user using phpMailer's error handling methods. 

// Validate email address
$email = 'test@example.com';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo 'Invalid email address';
} else {
    // Send email using phpMailer
    // Add your phpMailer code here
}

Keywords

phpMailer email address validation interception error display users

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