Xây dựng function renderStatement 9.1(ok)

$data = [
  'fields'     => '*',
  'table'      => 'user',
  'alias'      => 'User',
  'joins'      => '',
  'conditions' => ' WHERE  email = \'wordpress\' AND  password = \'b1909932aac1c5510c044de0cb8c0f3ef049a250\'',
  'group'      => '',
  'order'      => '',
  'limit'      => '',
];

// $abc = 'SELECT * FROM user User   WHERE  email = \'wordpress\' AND  password = \'b1909932aac1c5510c044de0cb8c0f3ef049a250\'   '

function renderStatement($type, $data) {
  extract($data);
  $aliases = null;
  switch (strtolower($type)) {
    case 'select':
      // SELECT u.`email`, m.title FROM `user` as u JOIN movie_category as m WHERE u.id =1 LIMIT 1
      return "SELECT {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order} {$limit}";
      break;
  }
};
$data = [
  'table'      => 'user',
  'alias'      => 'User',
  'joins'      => '',
  'fields'     => '*',
  'conditions' => ' WHERE  email = \'wordpress\' AND  password = \'b1909932aac1c5510c044de0cb8c0f3ef049a250\'',
  'group'      => '',
  'order'      => '',
  'limit'      => '',
];
$abc = renderStatement('select', $data);
// $abc = 'SELECT * FROM user User   WHERE  email = \'wordpress\' AND  password = \'b1909932aac1c5510c044de0cb8c0f3ef049a250\'   '