Re: What type are you? Mr Hash, Sir Array, or Miss Scalar?

The Scalar::Util module has a function 'reftype':

reftype EXPR

If EXPR evaluates to a reference the type of the variable referenced is returned. Otherwise "undef" is returned.
$type = reftype "string";           # undef
$type = reftype \$var;              # SCALAR
$type = reftype [];                 # ARRAY

$obj  = bless {}, "Foo";
$type = reftype $obj;               # HASH
[download]

Hugo

Comment on Re: What type are you? Mr Hash, Sir Array, or Miss Scalar? Download Code

Replies are listed 'Best First'.
Re: Re: What type are you? Mr Hash, Sir Array, or Miss Scalar? by Fletch (Bishop) on May 12, 2004 at 14:31 UTC
The builtin `ref` does this just fine for unblessed references. And unless you're going to be impolite and break encapsulation you may not want to go mucking about with other class' internals.	[reply] [d/l]
Re: Re: What type are you? Mr Hash, Sir Array, or Miss Scalar? by Doraemon (Beadle) on May 12, 2004 at 14:48 UTC
Ahhh, thanx, or else i will looked so DUMB :) Yes, i mean programatically, not me identifying variables (i know that, already). This is important when we using reference, since i need to know what the reference is pointing to...	[reply]
Re: Re: Re: What type are you? Mr Hash, Sir Array, or Miss Scalar? by Happy-the-monk (Canon) on May 12, 2004 at 15:21 UTC
have a look at `perldoc -f ref`, as Fletch already pointed out. Cheers, Sören	[reply]
Re: Re: What type are you? Mr Hash, Sir Array, or Miss Scalar? by Doraemon (Beadle) on May 12, 2004 at 15:42 UTC
I've tried it out, but why is this doesn't work? I've used ref instead, but never on advanced level (on class etc.	[reply]