<?php
$zip = new ZipArchive;
$zipName = 'archive.zip';

if ($zip->open($zipName, ZipArchive::CREATE) === TRUE) {
  function addFilesToZip($dir, $zip, $basePath = '') {
    $files = scandir($dir);

    foreach ($files as $file) {
      if ($file != '.' && $file != '..') {
        $filePath = $dir . '/' . $file;
        $relativePath = $basePath . $file;

        if (is_dir($filePath)) {
          addFilesToZip($filePath, $zip, $relativePath . '/');
        } else {
          $zip->addFile($filePath, $relativePath);
        }
      }
    }
  }
  
  addFilesToZip(__DIR__, $zip);

  $zip->close();
  echo '👍';
} else {
  echo '👎';
}