in reply to Using Shift with Parameters in a subroutine

It appears to me that you are only passing 2 refs to the sub. 
sub foo{
  my ($query_ref, $session_ref) = @_;
}

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These refs should be references to hash tables.

In general, passing 10 parameters to a sub is not a good idea. Better is reference to a hash.

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Re^2: Using Shift with Parameters in a subroutine
by capstan (Novice) on Oct 23, 2014 at 16:34 UTC
    Just to be thorough,

    my ($one, $two) = _@;

    works once, but ignores the side effect of shift (removing the arguments from the @_ array).

    As Marshall says, using a reference to an array would be the best way to deal with a lot of parameters, but if you wanted to, say, process two at a time, you could do

    while (my ($one,$two) = splice @_, 0, 2) {
    #do something
}

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    (you'll get an uninitialized value warning if you supply an odd number of parameters)
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[d/l]
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      thanks. i didnt realise this earlier, about the impact on @_ .
      Do not wait to strike when the iron is hot! Make it hot by striking - WB Yeats
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Re^2: Using Shift with Parameters in a subroutine
by perlron (Pilgrim) on Oct 22, 2014 at 08:27 UTC
    ok. ill improvise then. thanks. the 10 parameters was purely hypothetical , as a programming possibility. thats all.
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