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The subscript separator for multidimensional array emulation. If you refer to a hash element as


it really means

    $foo{join($;, $a, $b, $c)}

But don't put

    @foo{$a,$b,$c}      # a slice--note the @

which means


Default is ``\034'', the same as SUBSEP in awk. Note that if your keys contain binary data there might not be any safe value for ``$;''. (Mnemonic: comma (the syntactic subscript separator) is a semi-semicolon. Yeah, I know, it's pretty lame, but `` $,'' is already taken for something more important.)

Consider using ``real'' multidimensional arrays.

Source: Perl predefined variables
Copyright: Larry Wall, et al.
Next: $OFMT


(Corrections, notes, and links courtesy of RocketAware.com)

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