check if data exist in database laravel code example

Example 1: check table exists in db laravel

if (!Schema::hasTable('table_name')) {
    // Code to create table
}

Example 2: if notexists in laravel query

if (User::where('email', '=', Input::get('email'))->exists()) {
   // user found
}

Example 3: check for an existing user laravel eloquent

$users = User::where('email', '=', $request->input('email'))->first();
if ($users === null) {
  // User does not exist
} else {
  // User exits
}