hi someone tell me how to define
Notice: Undefined index: id in C:\xampp\htdocs\invoice\getcheckno.php on line 6
Notice: Undefined index: taxrate in C:\xampp\htdocs\invoice\getcheckno.php on line 7
PHP:
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'cookie';
$id = $_POST['id']; //
$taxrate = $_POST['taxrate']; //
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn ) { die('Could not connect: ' . mysql_error()); }
else {mysql_select_db('homedb');}
mysql_query("UPDATE numbers SET checkno=checkno+1");
$result=mysql_query("select checkno from numbers") or die ("Error - could not retrieve checkno from database");
$data=mysql_fetch_assoc($result);
echo "checkno ".$data['checkno'];
mysql_close();
?>