Im not sure I understand the inconsistancy. I performed similar operations on both, a hash and an array and I found the results as expected. Using the following code.
#!/usr/bin/perl
use Data::Dumper;
my %hash = ( b => bell, c => cell, d => dell, f => fell, h => hell );
foreach ( values %hash ) { s/ell/it/g };
print Dumper( \%hash );
my @array = qw ( b bell c cell d dell f fell h hell );
foreach ( @array ) { s/ell/it/g };
print Dumper ( \@array );
The results were as follows,
$VAR1 = {
'c' => 'cit',
'h' => 'hit',
'b' => 'bit',
'd' => 'dit',
'f' => 'fit'
};
$VAR1 = [
'b',
'bit',
'c',
'cit',
'd',
'dit',
'f',
'fit',
'h',
'hit'
];
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