(PHP Extension) Understanding JSON Array vs JSON Object

This example explains the difference between a JSON Array and a JSON Object. A JSON Array begins with "[" and ends with "]", whereas a JSON Object begins with "{" and ends with "}".

Elements contained in a JSON array are accessed by index, whereas elements in a JSON object are typically accessed by name (but can also be accessed by index).

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// A JSON array should be loaded into a Chilkat JSON array,
// whereas a JSON object should be loaded into a Chilkat JSON object.

// A JSON array may contain objects, and a JSON object may contains arrays, but
// it is the top-level (outermost) element that defines whether the JSON
// document is an array or an object.
// An array begins and ends with "[" ... "]"
// An object begins and ends with "{" ... "}"

// For example, an array containing 2 objects:
$strJsonArray = '[ { \'name\': \'Bill\' }, { \'name\': \'Ted\' } ]';

// Load it into a JSON array.
$jsonA = new CkJsonArray();
$success = $jsonA->Load($strJsonArray);
print 'number of array elements: ' . $jsonA->get_Size() . "\n";

// This is an object containing an array:
$strJsonObj = '{ \'characters\': [ \'Bill\', \'Ted\' ] }';

// Load it into a JSON object.
$jsonO = new CkJsonObject();
$success = $jsonO->Load($strJsonObj);
print 'number of object members: ' . $jsonO->get_Size() . "\n";

?>