Is it recommended to use JavaScript for form validation in addition to PHP validation, considering potential client-side limitations?

It is recommended to use JavaScript for form validation in addition to PHP validation to provide a better user experience by catching errors before the form is submitted and reducing the load on the server. However, it is important to remember that client-side validation can be bypassed, so PHP validation should always be used as a backup. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST["name"];
    $email = $_POST["email"];

    // PHP validation
    if (empty($name) || empty($email)) {
        echo "Please fill out all fields.";
    } else {
        // Process form data
    }
}
?>

Keywords

JavaScript form validation PHP validation client-side limitations technical recommendation

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