youtube_transcript_example.php

<?php

// Example usage of YouTube Transcript API in PHP
// Note: This is a hypothetical example as the official API is Python-based.
// You may need a third-party PHP library or wrapper for YouTube Data API to fetch transcripts.
// Install via Composer, e.g., composer require google/apiclient for YouTube API access.

require 'vendor/autoload.php';  // Assuming Google API Client is installed

use Google_Client;
use Google_Service_YouTube;

$client = new Google_Client();
$client->setDeveloperKey('YOUR_YOUTUBE_API_KEY_HERE');  // Replace with your actual API key
$youtube = new Google_Service_YouTube($client);

try {
    $videoId = 'exampleVideoIdHere';  // Replace with a real video ID, e.g., 'dQw4w9WgXcQ'
    
    // Fetch video details; transcripts aren't directly available via YouTube API v3, so this is simulated
    // In practice, you might use the API to get captions if enabled
    $response = $youtube->captions->listCaptions('snippet', $videoId, ['tfmt' => 'json']);
    
    if (!empty($response['items'])) {
        foreach ($response['items'] as $item) {
            // Hypothetical transcript processing; adapt based on actual caption data
            echo "Caption: " . $item['snippet']['text'] . "\n";  // Output simulated transcript lines
        }
    } else {
        echo "No transcript or captions available for this video.\n";
    }
} catch (Exception $e) {
    echo "Error: " . $e->getMessage() . "\n";
}

// End of script
?>