in reply to Scope Difference
in thread I need a simple explantion of the difference between my() and local()

A good use of local is when you are tweaking a special variable.

Let's say you want to slurp a whole file into a scalar. Your code would look something like this:

my $file;
{   local $/;
    open (FILE, "<$foo") or die "Unable to open $foo: $!";
    $file = <FILE>;
    close FILE;
}

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By enclosing the modification of $/ in a block, you avoid surprises down the road. $/ only has its value changed within that block.


TGI says moo

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Re: Re: Scope Difference
by dws (Chancellor) on May 02, 2001 at 22:18 UTC
    By narrowing the block that holds the local, you can further contain the effect. 
      open(FILE, "<$foo") or die "$foo: $!";
  my $file = do { local $/; <FILE> };
  close(FILE);

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