php composer运行安装库不工作

我尝试创建一个PHP类来安装一个新的composer库

它删除了

composer.json中的所有其他库

你有没有办法在不删除所有库的情况下添加库

多谢各位

public static function install(string $packages)
{
  if ($packages == self::dump()) {
    return false;
  }

  putenv('COMPOSER_HOME=' . BASE_DIRECTORY . 'External/vendor/bin/composer');

  self::createComposerJson($packages);

  // Setup composer output formatter
  $stream = fopen('php://temp', 'w+');
  $output = new StreamOutput($stream);

  // Programmatically run `composer install`
  $application = new Application();
  $application->setAutoExit(false);
  $application->run(new ArrayInput(array('command' => 'install')), $output);

  // remove composer.lock
  if (file_exists(static::$root . 'composer.lock')) {
    unlink(static::$root . 'composer.lock');
  }
  // rewind stream to read full contents
  rewind($stream);
  return stream_get_contents($stream);
}

/**
 * @param $packages
 * @return false|int
 */
protected static function createComposerJson($packages) {
  $array = [
    array(
      'config' => array('vendor-dir' => self::VENDOR_DIR),
      'require' => $packages,
      //
      // TODO:
      // windowsazure requires PEAR repository
      //
      'repositories' => array(array(
        'type' => 'pear',
        'url' => 'http://pear.php.net'
      )),
      'preferred-install' => 'dist'
    )
  ];

  $composer_json = str_replace("\/", '/', json_encode($array));

  return file_put_contents(static::$root . 'composer.json', $composer_json, FILE_APPEND | LOCK_EX);
}

结果是，对于composon.json。有一个问题

{
    "config": {
        "vendor-dir": "includes/ClicShopping/External/vendor"
    },
    "require": {
        "phpmailer/phpmailer": "^6.0",
        "guzzlehttp/guzzle": "^6.3",
        "setasign/fpdf": "1.8.1",
        "phpxmlrpc/phpxmlrpc": "^4.0",
        "sensiolabs/security-checker": "^6.0",
        "composer/composer": "^1.9"
    }
}
[{"config":{"vendor-dir":"vendor"},"require":"stripe/stripe-php","repositories":[{"type":"pear","url":"http://pear.php.net"}],"preferred-install":"dist"}]

请参阅使用或使用with append标志（a+@Jamie_D，TK）附加数据的输入方向，我添加了此元素，但正如您上面所看到的，json构造存在问题。不工作；你知道php脚本可以正确地使用composer吗？