PHP - Access ChatGPT API using cURL

To access OpenAI's ChatGPT API using PHP, you can use any HTTP client library that supports making HTTP requests with JSON payloads, such as Guzzle or cURL. You may find it a bit ridiculous, because ChatGPT hasn't officially announced the API yet. But the fact that OpenAI already has APIs available to provide full task processing like ChatGPT. This REST API can answer your questions or handle your requests with the same results as ChatGPT.

How GPT Chat Works

As a general-purpose language model, ChatGPT is likely to use a combination of OpenAI's available models and techniques to generate its responses, depending on the context and nature of the question. Additionally, OpenAI may update or modify its models over time, so the specific models used by ChatGPT may change as well. In other words, if you use the OpenAI API with the right Model, you can get the same results as ChatGPT. Of course ChatGPT will have more features and especially the ability to link topics with your messages.

How to access OpenAI ChatGPT API using Curl

You can study the documents and examples at the following links:

OpenAI Docs: https://platform.openai.com/docs/introduction
Models: https://platform.openai.com/docs/models/gpt-3
Features and examples: https://platform.openai.com/examples
Get API Key: https://platform.openai.com/account/api-keys

ChatGPT API Sample:

<?php

$data = array(

  "prompt" => "Is Climate Change worrisome?", //Your question or request

  "temperature" => 0.5,

  "max_tokens" => 500

);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/engines/davinci-codex/completions');

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

$headers = array();

$headers[] = 'Content-Type: application/json';

$headers[] = 'Authorization: Bearer YOUR_API_KEY';

curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($ch);

if (curl_errno($ch)) {

    echo 'Error:' . curl_error($ch);

}

curl_close($ch);

echo $response;

/**

 * Output Response :

 * Yes, climate change is dangerous and has significant consequences

 * for the planet and its inhabitants. The warming of the Earth's climate

 * due to increased greenhouse gas emissions, primarily from human

 * activities such as burning fossil fuels, is causing more frequent

 * and severe natural disasters, such as floods, heatwaves, wildfires, and storms.

 * */

Note:

- Unlike ChatGPT, OpenAI API is not free but charges based on the number of input and output characters each of your APIs

- A programmer can use OpenAI's API to integrate various natural language processing capabilities into their applications, such as text generation, question answering, language translation, sentiment analysis, and more. With the API, You can leverage the power of OpenAI's advanced machine learning models and algorithms without having to build them from scratch. However, note that OpenAI has some usage restrictions for their API, so make sure to review their documentation before integrating it into your project.