Access ChatGPT through PHP Using Curl Api. Easy Use of GPT3 API with Curl

php-chatgpt-curl.php

<?php
define("CHATGPT_API_KEY", "your-key-goes-here");
 
$data = array(
  "model" => "text-davinci-003",
  "prompt" => "What is PHP and how it works?", // Your question or request
  "temperature" => 0.5,
  "max_tokens" => 500
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/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';
$headers[] = 'Authorization: Bearer ' . CHATGPT_API_KEY;
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);
echo $response;

• 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

Raw CURL query:

curl https://api.openai.com/v1/completions \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer [Your API Key]" \
  -d '{
  "model": "text-davinci-003",
  "prompt": "What is your name?",
  "max_tokens": 4000,
  "temperature": 1.0
}' \
--insecure

Expected json result after php GPT3 request:

{
   "id":"cmpl-6manA3iq6iqoan2j3nGnanYXBFugmwulXm",
   "object":"text_completion",
   "created":1676998066,
   "model":"davinci-codex",
   "choices":[
      {
         "text":"reposnse text",
         "index":0,
         "logprobs":null,
         "finish_reason":"length"
      }
   ],
   "usage":{
      "prompt_tokens":7,
      "completion_tokens":500,
      "total_tokens":507
   }
}