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perlfunc:sub

by gods (Initiate)
on Aug 24, 1999 at 22:43 UTC ( [id://302]=perlfunc: print w/replies, xml ) Need Help??

sub

See the current Perl documentation for sub.

Here is our local, out-dated (pre-5.6) version:


sub - declare a subroutine, possibly anonymously



sub BLOCK

sub NAME

sub NAME BLOCK



This is subroutine definition, not a real function per se. With just a NAME (and possibly prototypes), it's just a forward declaration. Without a NAME, it's an anonymous function declaration, and does actually return a value: the CODE ref of the closure you just created. See the perlsub manpage and the perlref manpage for details.


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