For Determine whether a hash value exists, i googled the internet. and
found
print "Value EXISTS, but may be undefined.\n" if exists
$hash{ $key };
so i have a test by below code while it seems i can not get the
expeacted result. (all result is value is non existed.)
print "Value EXISTS, but may be undefined.\n" if exists
$cart{ $itemID};
i have been try the code for two days but still no further progress, i
hope i could get some clue or assistance here.
Thank you in advance
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/
