Drupal 8 Get all content types

To get the list of all content type, Drupal 7 provides us a function "node_type_get_types()" which return a list of all content type with their machine name.

In D8 for some time this function will exist, but in future, this will be deprecated and in Drupal 9 this will be removed.

So if you are using this function then this will work but any update of Drupal 8 will deprecate this function.So to avoiding this problem use following code:

Just include this class

use Drupal\node\Entity\NodeType;

then write this line, which returen an array of content type objects.

$content_types = NodeType::loadMultiple();

For only get list of content type, you can use this

    $types = array();

    if (!empty($content_types)) {

      foreach ($content_types as $type => $details) {

        $types[$details->id()] = $details->label();

      }

      asort($types);

    }

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