Add MD5 PHP function to OctoberCMS without a Plugin

md5.php

// Put this in your code section in your layout

function onstart() {
  $this['url_hasher'] = new class {
      public function run($input) {
          return md5($input);
      }
  };
}

Then call using this
{{ url_hasher.run('PUT INPUT HERE') }}

// need to pass a variable from a plugin? No problem. Contencate the code:

{{ url_hasher.run('PUT INPUT HERE' ~ this.page.title) }}

// Useful when using screenshotlayer.com's api