Extract text and captions from a Youtube Video with PHP and Laravel

ExtractCaptionsFromYoutube.php

<?php

use Illuminate\Support\Facades\Http;

$videoId = "AuEv942wOZs";

$transcriptUrl = Http::post(
  "https://youtubei.googleapis.com/youtubei/v1/player",
  [
    "videoId" => $videoId,
    "context" => [
      "client" => [
        "hl" => "en",
        "clientName" => "WEB",
        "clientVersion" => "2.20210721.00.00"
      ]
    ]
  ]
)->json("captions.playerCaptionsTracklistRenderer.captionTracks.0.baseUrl");
$transcriptXml = Http::post($transcriptUrl, [
  "videold" => $videoId
])->body();