Can you please show me how to iterate through my staff members without getting the error seen below
+.
In my example, iterating multiple animals works fine, but iterating a single staff member errors.
#!/usr/bin/perl
use strict;
use Data::Dumper;
use XML::Simple;
&create_zoo;
&display_zoo;
sub create_zoo{
my %zoo=(
animals=>{
1=>{type=>'tiger', nickname=>'tom'}
,2=>{type=>'lion', nickname=>'leo'}
}
,staff=>{
1=>{role=>'manager', nickname=>'mike'}
}
);
print "------------------\n";
print "Data Dump\n";
print Dumper(\%zoo);
print "------------------\n";
my $xml = new XML::Simple();
open (FILE, '>', "file.xml");
print FILE $xml->XMLout(\%zoo,noattr=>1,xmldecl=>'<?xml version="1.0"?>');
close FILE;
print "------------------\n";
print "XML File\n";
print `cat file.xml`;
print "------------------\n";
}
sub display_zoo{
my $xml = new XML::Simple();
my $zoo=$xml->XMLin("file.xml");
print "------------------\n";
foreach my $animal (keys (%{$zoo->{'animals'}})){
print $zoo->{'animals'}->{$animal}->{'nickname'};
print " is a " . $zoo->{'animals'}->{$animal}->{'type'} . "\n";
}
foreach my $staff (keys (%{$zoo->{'staff'}})){
print $zoo->{'staff'}->{$staff}->{'nickname'};
print " is a " . $zoo->{'staff'}->{$staff}->{'type'} . "\n";
}
}
sar:/# ./zoo.pl
------------------
Data Dump
$VAR1 = {
'staff' => {
'1' => {
'nickname' => 'mike',
'role' => 'manager'
}
},
'animals' => {
'1' => {
'nickname' => 'tom',
'type' => 'tiger'
},
'2' => {
'nickname' => 'leo',
'type' => 'lion'
}
}
};
------------------
------------------
XML File
<?xml version="1.0"?>
<opt>
<animals>
<name>1</name>
<nickname>tom</nickname>
<type>tiger</type>
</animals>
<animals>
<name>2</name>
<nickname>leo</nickname>
<type>lion</type>
</animals>
<staff>
<name>1</name>
<nickname>mike</nickname>
<role>manager</role>
</staff>
</opt>
------------------
------------------
tom is a tiger
leo is a lion
Can't use string ("mike") as a HASH ref while "strict refs" in use at ./zoo.pl line 45.
sar:/#
