Insert Each Line Textarea

<?php
/*
Template Name: ad task
*/

global $wpdb;
?>
<?php
if (isset($_POST['submit']))
{
$table_name = $wpdb->prefix . "tasks";
$user_ID = get_current_user_id();
$values = $_POST['taskName'];
$array = split("\r\n", $values);
foreach($array as $line){
$wpdb->insert( $table_name, array( 'task_name' => $line, 'user_id' => $user_ID ) );
echo'<script> window.location="/demos/Anthony/my-tasks/"; </script> ';
}
}
else
{
   echo "no data posted";
}
?>