Checking if Variable is Set

[Spire2000]

I'm wondering if there is a way to check and see if a variable is declared or not, and if not, to set it.

if (!defined($country)) {
$country="0";
}

Probably the above won't work, though I have yet to actually test it. Does anyone have any tips for me as to what I can try?

Thanks in advance for any assistance.

[vaaaska]

if (isset($var)) {...

http://be.php.net/isset

[Spire2000]

Thanks! The "isset" was what I was missing.

Much appreciated.