dereferencing CGI->param 1

[1DMF]

I am having trouble dereferencing the CGI->param vars

If I do this

 print "$cgi->param('name')";

I get

CGI=HASH(0x2155b8)->param('name')

if i do this

 print "$$cgi->param('name')";

I get

Not a SCALAR reference

if i do this

 print "\$cgi->param('name')";

I get

$cgi->param('name')

Now I know if I use concatination it will work but that's a real pain as this is a snippet from the massive long line of code as it is, without having to do

 "my text " . $cgi->param('varname') . " more stuff " . $cgi->param('varname') . " and more stuff" . $cgi->param('varname')

etc.. etc...

is there no way to get to the text value of the $cgi->param() object easily?

"In complete darkness we are all the same, only our knowledge and wisdom separates us, don't let your eyes deceive you.

 

[ishnid]

When interpolating inside the quotes, perl won't recognise the -> operator, which means that the short answer is that no, you can't get at it easily. If you're using the variables a number of times, it might help to create variables to hold each of the parameters so that you can just put ordinary scalars into the string. Alternatively, you could use the CGI's Vars method to get the values into a hash, which you can then use directly inside the quotes.

 

[1DMF]

not what i wanted to hear - lol, oh well, I guess concatination it is.

I see no point in creating vars to hold data already being held in memory, shame, would have made my life easier if you could get access within quotes!

thanks for the reply.

"In complete darkness we are all the same, only our knowledge and wisdom separates us, don't let your eyes deceive you.

 

[ishnid]

For me, it would depend on how often I was likely to be using the variables in question. For a once-off, I wouldn't generally bother creating seperate variables. But if they were being used a few times, the amount of extra memory required is pretty minor compared to the boost to readability and maintainability of the code. That's my opinion anyway.

 

[1DMF]

well that's me always trying to be clever and end up shooting myself in the foot!

PERL may have many ways to skin the cat, but it's always me who ends up red raw!

"In complete darkness we are all the same, only our knowledge and wisdom separates us, don't let your eyes deceive you.