(PHP Extension) Azure AI Foundry Query

This is the simplest example of using Chilkat with Azure AI Foundry.

Note: This example requires Chilkat v11.3.0 or greater.

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<?php

include("chilkat.php");

$success = false;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$ai = new CkAi();

// Before running the code, ensure the following prerequisites for App Registration in Microsoft Entra ID for Azure AI Foundry:
// 1. Register an app for Azure AI Foundry.
// 2. Assign an IAM Role to the resource to enable OAuth2 Client-Credentials for calling Azure AI Foundry.

// For Azure AI Foundry we use "custom".
$ai->put_Provider('custom');

// The base URL format for the Chat Completions API when using the cognitiveservices.azure.com domain is:
// https://{resource-name}.cognitiveservices.azure.com/openai/deployments/{deployment-id}/chat/completions?api-version={api-version}

// The string "{deployment}" in the base URL is dynamically replaced with the selected AI model each time a request is sent.
// In this case, the chosen model (below) is "gpt-4o".  After substitution the base URL becomes: 
// https://chilkat.cognitiveservices.azure.com/openai/deployments/gpt-4o/chat/completions?api-version=2025-01-01-preview

// In this example, our resource name is "chilkat", and the api-version is "2025-01-01-preview"
$ai->put_BaseUrl('https://chilkat.cognitiveservices.azure.com/openai/deployments/{deployment}/chat/completions?api-version=2025-01-01-preview');
$ai->put_ApiSpec('ChatCompletions');

// Use your provider's API key.
$ai->put_ApiKey('MY_API_KEY');

// Set Azure Foundry specific params.
$azureParams = new CkJsonObject();

// The tenant ID is a GUID such as 17280f2d-f709-4a7b-af1d-9928190e13cf
$azureParams->UpdateString('azure.tenantId','TENANT_ID');

// The client ID is a GUID such as 4abd4bf6-5260-4795-90f6-1e91ce4f582c
$azureParams->UpdateString('azure.clientId','CLIENT_ID');

// Such as UZc8Q~YBrRIgfe_zbAOwWV.8ikuHa3JJF7LvCdt.  (this is not a GUID)
$azureParams->UpdateString('azure.clientSecret','CLIENT_SECRET');

// The subscription ID is a GUID such as 4abd4bf6-5260-4795-90f6-1e91ce4f582c
$azureParams->UpdateString('azure.subscription','SUBSCRIPTION_ID');

// Such as eastus
$azureParams->UpdateString('azure.location','LOCATION');

// With the Azure-specific provider params specified,
// Chilkat will internally fetch the OAuth2 access token using client credentials as needed.
$ai->SetProviderParams($azureParams);

// Choose a model.
$ai->put_Model('gpt-4o');

// Add a text input.
$ai->InputAddText('Say Hello.');

// Ask the AI for text output.
$success = $ai->Ask('text');
if ($success == false) {
    print $ai->lastErrorText() . "\n";
    exit;
}

// Get the text response.
$sbResponse = new CkStringBuilder();
$ai->GetOutputTextSb($sbResponse);
print $sbResponse->getAsString() . "\n";

// Sample output:
// Hello! How can I assist you today?

// -------------------------------------------------------------
// The response is in markdown format.
// Also see Markdown to HTML Conversion Examples.
// -------------------------------------------------------------

?>