Scalar found where operator expected -- getting error - please help

[gjoshi]

Hi all,

Hi have three variables I parse the string and find out different values and store it in variables as below: Example

$tmp = "37";
$tmp1 = "<=";
$tmp2 = "4";

#Now I want to use all these variables in if condition.
# I am trying to do following and I am getting an error

if($tmp $tmp1 $tmp2)
{
   # do some thing  
}
else
{
   # do some thing
}

Could you please tell me how to do that. Is it possible?

thanks --girija

[Athanasius]

Hello gjoshi,

Yes, it’s quite possible. Look at the string form of eval (called eval EXPR in the documentation).

Hope that helps,

[gjoshi]

Hi, Yes it did work for me. Thanks a lot. thanks --girija

[soonix]

However, you should ask your teacher before trying this out if your users can enter "operators" like this

$tmp1 = ", system qw(rm -rf /), system qw(format c:),";

(untested of course ;-))

[1nickt]

You already asked this question here. You should post follow-up questions there if the answer given didn't help you.