As sauoq said, you could use a reference, which is probably the best way. You could also do this though:
#! perl -w %a = (qw{ good orange good apple} ); TEST(%a); sub TEST{ my %h = @_; foreach (keys %h){ print $_; } }

Note using @_ where you had used $_[0] - that converts the entire array of parameters into a hash.

This is because the function receives a list of param, value, param, value.., which is stored in @_. By doing %h = @_; you put this into a hash with the first, third, fifth etc values as keys, and the second, fourth, sixth etc as values.

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"If there is such a phenomenon as absolute evil, it consists in treating another human being as a thing."

John Brunner, "The Shockwave Rider".


In reply to Re: pass a hash to subroutine by g0n
in thread pass a hash to subroutine by benlaw

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