Notice: Undefined index: rand in .....

[complearn]

Do you know why I got these errors for status_bar.php in some webhost, but work perfectly on other webhost?

Notice: Undefined index: re in /usr/home/daniel/domains/thehornyguy.com/public_html/criminalonline/status_bar.php on line 18

Notice: Undefined index: rand in /usr/home/daniel/domains/thehornyguy.com/public_html/criminalonline/status_bar.php on line 18

Whats wrong? here are the codes from line 18, our webhost is running php5.

$dmg = ($_GET['re'] == 0 || $_GET['re'] == '22') ? $_GET['rand'] : $_GET['diff']+$_GET['rand'];

[Dormilich]

it looks like neither "re" nor "rand" were defined in the URL, that's why it is always a good idea to check for their existance first:

// expand for all required vars
if (isset($_GET['re'], $_GET['rand'])) 
{
    // code coming here
}

[complearn]

what is " // code coming here" please? The full line is there, and I dont know php at all.. please show me the exact line to put back to the file.....

[Dormilich]

the meaning of

 // code coming here

is as follows:
I don't have a clue*, what code you use on these values, thus replace "// code coming here" with your actual code.

(btw. // indicates a one line comment)

* it might be more than line 18.....

alternatively, you may abort the function if the requirement is not met:

if (!isset($_GET['re'], $_GET['rand']))
{
    // any default actions
    return false;
}

[RedSon]

If you don't know PHP why are you trying to program in it? Don't you think you would be better served by looking over a few tutorials first and trying to learn the language before you try something more advanced?