[RESOLVED] undefine index

[myPHP2011]

hello people of sound mind with logic thinking am kind of stuck with a notice error called undefine index, what do u think could b d cause. thanks
here is d code d error lies within d line 1 to 8

<?php
$continent = $country = $num_city = "";

if ($POST['submit'] == "submit")

{
$continent = $POST['frmContinent'];
$country = $POST['frmCountry'];
$num_city = $POST['frmCity'];
include_once("database.php");
$myconnect = mysql_connect($hostname, $username , $pword);
mysql_select_db($dbase, $myconnect)or die(mysql_error());
}

[NogDog]

The notice means you are referencing an array element that does not exist (is not defined). It could be a typo in your code or the HTML form that calls the script, or it could be a logic issue, such as if you have the form and the form-processor in the same page, and do not first check to see if the form was submitted before trying to process it (for example by using isset($_POST['submit']) in and if() clause).

PS: I'd suggest you use full English words here rather than u using d chat-style short-cuts, mainly to make it easier for everyone to read your posts (including our many members who do not speak English as their first language), but also to look more professional. 😉