How can the PHP empty() function be utilized to improve the email validation process in the given PHP script?

The issue with the current email validation process in the given PHP script is that it only checks if the email field is not empty, but it doesn't verify if the email is in a valid format. To improve the email validation process, we can utilize the PHP empty() function to check if the email field is not empty before proceeding with the validation. 

$email = $_POST['email'];

if (!empty($email) && filter_var($email, FILTER_VALIDATE_EMAIL)) {
    // Email is not empty and in a valid format
    // Proceed with further processing
} else {
    // Email is empty or not in a valid format
    // Display an error message to the user
}

Keywords

PHP empty() function email validation script improvement

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