Another REALLY basic question!

[fred]

Hi All

What does -> mean in perl scripting.

eg.

my $f_username=$query->param('req_username');
my $f_password=$query->param('req_password');

Thanks

Fred

 

[it_says_BALLS_on_your forehead]

Hi All

What does -> mean in perl scripting.

the arrow operator either dereferences a reference, or is a method
invocation.

 

[bob]

in lamens terms for the example reference it means

"in" query "is" param('req_username')

 

[QB]

in lamens terms for the example reference it means

"in" query "is" param('req_username')

In lamentable terms, maybe.

As the previous responder said, it is either a dereference, or a method
call.

In lay-man's terms, $query->param('req_username') asks the object $query
(of class CGI, no doubt) to return the value of its 'req_username'
parameter, by calling the method param.

Since CGI:aram returns undef (in scalar context) if its argument was
not present in the query string, it can also be used as an existence
tester in a Boolean expression.

QB

PS. Please quote context and include attribution(s) when replying to a post.