Submission form won't stay on same page
Here is my form: <form action="#" method="post"> <input type="text" size="25" name="firstname" placeholder="First Name" value="<?php echo $fn; ?>"/> <input type="text" size="25" name="lastname" placeholder="Last Name" value="<?php echo $ln; ?>"/> <input type="text" size="25" name="username" placeholder="Username" value="<?php echo $un; ?>"/> <input type="text" size="25" name="email" placeholder="Email" value="<?php echo $em; ?>"> <input type="text" size="25" name="email2" placeholder="Repeat Email" value="<?php echo $em2; ?>"/> <input type="password" size="32" name="password" placeholder=