On Sunday night I posted Chapter 20, “Working with Third-Party Libraries,” of “The Yii Book”. The chapter is 39 pages long as a PDF, with the following contents:
Accessing Library Classes
Working with Composer
Using Swift Mailer
Most of the chapter covers Elasticsearch, creating the shell of a search engine. This rules out the need for Chapter 24, “Implementing a Search Engine,” in my opinion. So, by my count, after this, there are 4 chapters left.