title: laravel check if it exists and send an alert
body: <p>I need help with Laravel</p>
  
  <p>I need to get a code that runs:  if and send a message ::</p>
  
  <pre><code> $text = App\Nota::select('nombre')-&gt;where('id', 3);
  </code></pre>
  
  <p>I need to check that if a <code>string = 'hello'</code> arrives it will print a message in .blade</p>
  
  <p>in short check if it exists and send an alert</p>
  
  <p>Help me please </p>