The index.php is a simple .php file to connect to OpenAi's API and prompt a text request using cUrl().
OPTIONAL: You can use the ChatGPT.php class to create both image and text request with the help of OpenAi's API. More details in comments.

This is the simplest and beginner-friendly method to connect to ChatGPT API without any need of library

Generate an API KEY from https://beta.openai.com/account/api-keys and paste into the code.

Modify the prompt to fit your own needs. You can add optional parameters to the class object function calls:

• createTextRequest("What's the best job?", 'text-davinci-003', 0.9, 300) // prompt, model, temperature, max_tokens
• generateImage("Frog on a frozen lake", '1080x1080', 2) // prompt, imageSize, numberOfImages