i want to redirect from my feedback form to main html file after clicking on alert message which prompts after getting the feedback
i used the code given below
<?php
echo '<script language="javascript">';
echo 'alert("Thankyou for your feedback.");';
echo 'window.location.href="file:///C:/xampp/htdocs/project/main.html";';
echo '</script>';
?>
there is a blank white screen after i click on ok(alert message) this is my contactindex.php file above