Perl

JSON: Array of Objects

See more JSON Examples

Here we have a JSON object that contains an array, where each element in the array is a JSON object. This example demonstrates how to access the objects contained within an array.

{ 
  "employees":[
    {"firstName":"John", "lastName":"Doe"},
    {"firstName":"Anna", "lastName":"Smith"},
    {"firstName":"Peter","lastName":"Jones"}
  ]
}

Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

my $json = Chilkat2::JsonObject->new;

# This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars).
# The presence of whitespace chars for pretty-printing makes no difference to the Load
# method.
my $jsonStr = '{"employees":[{"firstName":"John", "lastName":"Doe"},{"firstName":"Anna", "lastName":"Smith"},{"firstName":"Peter","lastName":"Jones"}]}';

my $success = $json->Load($jsonStr);
if (!$success) {
    print $json->LastErrorText, "\n";
    exit;
}

# Get the "employees" array.
my $employees = $json->ArrayOf('employees');
if (!$json->LastMethodSuccess) {
    print "employees member not found.\n";
    exit;
}

# Iterate over each employee, getting the JSON object at each index.
my $numEmployees = $employees->Size;
my $i = 0;
while ($i < $numEmployees) {
    my $empObj = $employees->ObjectAt($i);

    print 'employee[', $i, '] = ', $empObj->StringOf('firstName'), ' ', $empObj->StringOf('lastName'), "\n";

    $i = $i + 1;
}