Get column names in Laravel 4

gistfile1.php

<?php

class BaseModel extends Eloquent {


    public function columns(){
      $table = $this->getTable();
      return DB::select(" SHOW COLUMNS FROM ".$table);
    }

}

// other model
class OtherModel extends BaseModel{
  
}

// controller
$table = new \OtherModel; 
dd($table->columns());