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PHP Extension

AI Ask with Multiple Tool Function Callbacks

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This example demonstrates asking a two-part question that should cause the AI to respond with two tool call requests.

Chilkat PHP Extension Downloads

PHP Extension
<?php

include("chilkat.php");

$success = false;

//  ----------------------------------------------------------------------------------
//  The Javascript file loaded here is shown at the bottom of this page.
//  -----------------------------------------------------------------------------------

//  Load JavaScript containing the tool functions.
$sbJs = new CkStringBuilder();
$success = $sbJs->LoadFile('qa_data/js_tools/toolset_6.js','utf-8');
if ($success == false) {
    print $sbJs->lastErrorText() . "\n";
    exit;
}

$ai = new CkAi();

//  Register the tools that will be made available to the AI.
$evalOnly = false;
$allowAllKeyword = true;
$ai->RegisterJsTools($sbJs,$evalOnly,$allowAllKeyword);

//  The provider can be "openai", "google", "claude", "grok", "mistral", "custom", etc.
$ai->put_Provider('openai');
//  Use your provider's API key.
$ai->put_ApiKey('MY_API_KEY');
//  Choose a model.
$ai->put_Model('gpt-5.6-luna');

//  Tool function calling must always occur within a conversation.
$conversation_name = 'example_convo';
$sysMessage = 'You are a helpful assistant';
$devMessage = 'Respond with markdown';
$ai->NewConvo($conversation_name,$sysMessage,$devMessage);

//  Provide inputs
$ai->InputAddText('What is my horoscope? I am an Aquarius.  Also, what's the weather in Chicago?');

//  Send inputs, tool functions, etc. and ask for a "text" response.
//  If the AI responds with tool calls, Chilkat automatically handles them by calling your JavaScript
//  tool functions as directed by the AI, and sending results back to the AI until the final
//  response is received.
$success = $ai->Ask('text');
if ($success == false) {
    print $ai->lastErrorText() . "\n";
    exit;
}

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

?>
JavaScript
// The namespace for the AI tool functions in this JavaScript source file.
Example = {};

// Tool functions must have only one argument, which should be an object.

// The function name used here must match the "name" in the toolRegistry below.
Example.get_weather = function(arg) {
  return {
	  "temperature": 45,
	  "unit": "F",
	  "conditions": "Cloudy"
	};
}

Example.get_horoscope = function(arg) {
  return  `${arg.sign} : Next Tuesday you will befriend a baby otter.`;
}



// The inputSchema.type must ALWAYS be "object".
Example.toolRegistry = [
  {
    name: "get_horoscope",
    description: "Get today's horoscope for an astrological sign.",
    parameters: {
      properties: {
        sign: { type: "string", description: "An astrological sign like Taurus or Aquarius" }
      }
    }
  },
  {
    name: "get_weather",
    description: "Gets the weather at a location.",
    parameters: {
      properties: {
        location: { type: "string", description: "Location such as a city name." },
      }
    }
  }
];


Example.toolPermissions = [
	  {
	    name: "all",
	    perm: "sandbox",
	  }
	  		
	];
	
	
// Return the name of this toolset
// This tells Chilkat the namespace of this toolset.
"Example";