check_plain

While am working with Drupal 7 to Drupal 8 module migration I have faced the following issue.Fatal error: Call to undefined function check_plain().As Zyxware is a regular contributor to Drupal, its relevant that we need to upgrade our contibuted modules too.

YAML is a data serialization language which is easily readable to both humans and computers. It is for this very reason that YAML is being used in Drupal 8. YAML stands for YAML Ain't Markup Language.