use strict;
use Data::Dumper;

print "Check 1\n";
print Dumper {
     'field1' => 'value',
     'field2' => 'value',
     'checkfield' => '1'
};

print "Check 2\n";
print Dumper {
     'field1' => 'value',
     'field2' => 'value',
     'checkfield' => '1',
     'checkfield' => '3'
  }
;
print "Check 3\n";
print Dumper {
     'field1' => 'value',
     'field2' => 'value',
     'checkfield' => '1',
     'checkfield' => '3',
     'checkfield' => '5'
}