You need to dereference the array before iterating through it, otherwise you iterate over one element (the reference). That means you need to change $dataoptions{$columns[$i]} to @{$dataoptions{$columns[$i]}}.

Related documents:
• perlref - Perl references and nested data structures
• perlreftut - Mark's very short tutorial about references
• perllol - Manipulating Arrays of Arrays in Perl
• perldsc - Perl Data Structures Cookbook

ihb

See perltoc if you don't know which perldoc to read!
Read argumentation in its context!

In reply to Re: Foreach in a 2D array by ihb
in thread Foreach in a 2D array by monoxide

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