PHP ActiveX Requires Chilkat v11.4.0+

Call a JavaScript Function Returning an Object

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Demonstrates how to call a JavaScript function that returns an object. PHP ActiveX

<?php

$success = 0;

//  This is the JavaScript function we'll call:

//  function getSettings() {
//      return {
//          theme: "dark",
//          notifications: true,
//          version: 1.0
//      };
//  }

$sbScript = new COM("Chilkat.StringBuilder");
$sbScript->Append('function getSettings() {');
$sbScript->Append('    return {');
$sbScript->Append('        theme: \'dark\',');
$sbScript->Append('        notifications: true,');
$sbScript->Append('        version: 1.0');
$sbScript->Append('    };');
$sbScript->Append('}');

$js = new COM("Chilkat.Js");

$result = new COM("Chilkat.JsonObject");
$result->EmitCompact = 0;

//  Call Eval to add the function to the context's global object
$success = $js->Eval($sbScript,$result);
if ($success == 0) {
    //  Examine the result for an exception.
    print $result->emit() . "\n";

    //  Also examine the LastErrorText.
    print $js->LastErrorText . "\n";
    exit;
}

//  ------------------------------------------------------------------------------
//  Call the function getSettings()

$funcCall = new COM("Chilkat.JsonObject");

//  Create JSON specifying the function name and arguments
//  The function has no arguments, so we only specify the name.

//  {
//    "name": "getSettings",
//  }

$funcCall->UpdateString('name','getSettings');

$success = $js->CallFunction($funcCall,$result);
if ($success == 0) {
    //  Examine the result for an exception.
    print $result->emit() . "\n";

    //  Also examine the LastErrorText.
    print $js->LastErrorText . "\n";
    exit;
}

print $result->emit() . "\n";

//  Output:
//  {
//    "type": "object",
//    "value": {
//      "theme": "dark",
//      "notifications": true,
//      "version": 1
//    }
//  }

//  Examine the object's members
print 'theme: ' . $result->stringOf('value.theme') . "\n";
print 'notifications: ' . $result->BoolOf('value.notifications') . "\n";
print 'version: ' . $result->IntOf('value.version') . "\n";

//  Output:
//  theme: dark
//  notifications: True
//  version: 1

?>