isset

<?php
/*
Template Name: ad task
*/
require_once('../../../wp-config.php');
global $wpdb;
?>
<?php
?>
<?php
if (isset($_POST['submit']))
{
$table_name = $wpdb->prefix . "tasks";
$user_ID = get_current_user_id();
$wpdb->insert( $table_name, array( 'task_name' => $_POST['taskName'], 'user_id' => $user_ID ) );
echo'<script> window.location="http://savvychorecharts.com/my-tasks"; </script> ';
}
else
{
   echo "no data posted";
}
?>