How to insert multidata textarea values and input values in same insertion

Hai to all



here is my table data..

(4 Columns/1row in mysql table)

id                 bno                            date                      results
310                001	 			  02-15-2020               MI,108.53
									   Oh,194.57
									   PA,182.22
									   WA,238.57

How to split(statemiles) single column into (state, Miles) two columns and output like following 5 columns /4rows in mysql using php code.

(5 Columns in mysql table)
------------------------------------------------------------------------------------

id                  bno                             date                  result1     result2

310                001	 			  02-15-2020               MI          108.53

310                001	 			  02-15-2020		   Oh          194.57

310                001	 			  02-15-2020		   PA          182.22

310                001	 			  02-15-2020		   WA          238.57

<?php
//invoice.php  
include('../includes/config.php');

if(isset($_POST["add"]))
{
$order_no=$_POST['order_no'];
$comma = preg_replace('/,\\s*/', "', '", $_POST["stateandmileslist"]);
$row = preg_replace('/\\n/', "'), \n('", $comma);
$query = "insert into tis_satesmiles (states, miles) values ('" . $row . "')";
$statement = $dbh->prepare($query);
$statement->execute();
}
?>