TO edit email web form such way so that it will support special characters like ščťžáé

I am looking for a developer to edit my email web form to support special characters like ščťžáé. Skills and experience needed: - Proficiency in HTML, PHP, and web forms - Knowledge of character encoding and handling special characters in web forms The project involves making modifications to an existing HTML and PHP form to ensure that it supports the specified special characters. No additional features or modifications are required, just the character support. In body is this: <form id="contact-form" action="[login to view URL]" method="POST" accept-charset="UTF-8" ...> <label for="name">Name:</label> <input type="text" id="name" name="name" required> <label for="email">Email:</label> <input type="email" id="email" name="email" required> <label for="subject">Subject:</label> <input type="text" id="subject" name="subject" required> <label for="message">Message:</label> <textarea id="message" name="message" rows="10" required></textarea> <input type="submit" value="Submit"> </form> <div id="error-message" class="error"></div> </div> In submit page is this: <?php // Get the form data from the POST request $name = $_POST["name"]; $email = $_POST["email"]; $subject = $_POST["subject"]; $message = $_POST["message"]; // Set the recipient email address $to = "email"; // Set the email headers $headers = "From: $email" . "\r\n" . "Reply-To: $email" . "\r\n" . "X-Mailer: PHP/" . phpversion(); // Send the email mail($to, $subject, $message, $headers); ?> In script is this: // JavaScript code for validating and submitting the form // Get the form element var form = [login to view URL]("contact-form"); // Get the error message element var errorMessage = [login to view URL]("error-message"); // Add an event listener to the form submit event [login to view URL]("submit", function(event) { // Prevent the default behavior of the form submit [login to view URL](); // Get the input values from the form var name = [login to view URL]("name").value; var email = [login to view URL]("email").value; var subject = [login to view URL]("subject").value; var message = [login to view URL]("message").value; // Validate the input values if (name == "" || email == "" || subject == "" || message == "") { // If any of the input values are empty, display an error message [login to view URL] = "Please fill in all the fields."; return false; } else if (!validateEmail(email)) { // If the email is not valid, display an error message [login to view URL] = "Please enter a valid email address."; return false; } else { // If everything is valid, clear the error message and submit the form data [login to view URL] = ""; submitFormData(name, email, subject, message); return true; } }); // A function to validate an email address using a regular expression function validateEmail(email) { var regex = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/; return [login to view URL](email); } // A function to submit the form data using AJAX function submitFormData(name, email, subject, message) { // Create a new XMLHttpRequest object var xhr = new XMLHttpRequest(); // Specify the request method and URL [login to view URL]("POST", "[login to view URL]"); // Set the request header for sending form data [login to view URL]("Content-Type", "application/x-www-form-urlencoded"); // Create a query string with the form data var data = "name=" + encodeURIComponent(name) + "&email=" + encodeURIComponent(email) + "&subject=" + encodeURIComponent(subject) + "&message=" + encodeURIComponent(message); // Send the request with the data [login to view URL](data); // Handle the response [login to view URL] = function() { if ([login to view URL] == 200) { // If the request was successful, display a success message alert("Your message has been sent. Thank you!"); // Reset the form fields [login to view URL](); } else { // If the request failed, display an error message alert("Something went wrong. Please try again."); } }; All pages are charset=utf-8. What am I doing wrong? Please, bid only if you can tell me how to fix it and if you can do it for 5-10 dollars, before I select you. Thanks a lot.