PHP AI detector quickstart

Send at least 150 characters for a more reliable signal. The response score ranges from 0 (more likely human-written) to 1 (more likely AI-generated); use it as evidence, not proof.

No language-specific SDK is required. The example uses a standard or commonly used HTTP client to call Sapling's JSON API.

PHP /api/v1/aidetect

This example uses PHP's cURL extension.

<?php

$apiKey = getenv('SAPLING_API_KEY');
if (!$apiKey) {
    throw new RuntimeException('Set SAPLING_API_KEY first.');
}

$payload = json_encode([
    'text' => 'I am an artificial intelligence system designed to help people solve complex problems. My capabilities include natural language processing, machine learning, and predictive analytics.',
    'sent_scores' => true,
], JSON_THROW_ON_ERROR);

$request = curl_init('https://api.sapling.ai/api/v1/aidetect');
curl_setopt_array($request, [
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => $payload,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer ' . $apiKey,
        'Content-Type: application/json',
    ],
    CURLOPT_RETURNTRANSFER => true,
]);

$body = curl_exec($request);
if ($body === false) {
    throw new RuntimeException(curl_error($request));
}

$status = curl_getinfo($request, CURLINFO_RESPONSE_CODE);
curl_close($request);

if ($status < 200 || $status >= 300) {
    throw new RuntimeException("Sapling API error {$status}: {$body}");
}

echo $body;

Example response application/json

{
  "score": 0.9989,
  "sentence_scores": [
    {
      "score": 0.9764,
      "sentence": "I am an artificial intelligence system designed to help people solve complex problems."
    },
    {
      "score": 0.9812,
      "sentence": "My capabilities include natural language processing, machine learning, and predictive analytics."
    }
  ],
  "text": "I am an artificial intelligence system designed to help people solve complex problems. My capabilities include natural language processing, machine learning, and predictive analytics."
}

The overall score and sentence scores use different methods and may not match exactly. Choose thresholds based on the false-positive and false-negative costs of your use case.

Reference Full AI detector API documentation All languages Choose another quickstart

About PHP

PHP is a popular scripting language for the web. It is typically processed on a web server as a module, daemon or CGI executable. Many popular web services are written in PHP including well-known websites such as Facebook and frameworks like Wordpress.

PHP AI Detector

PHP AI detector quickstart