PHP knows print_r -- which prints a data structure hierarchically,
and is very useful for debugging.
e.g.
echo "Variable a is " . print_r( $a, true ) . "\n";
Is there something similarly easy in Perl?
It appears that Data::Dumper may be of help, but I have not been able
to figure out how to make the output reasonably compact (I don't want
to see the pseudo-hash index fields etc.)
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