Question: yii2 how to create module?
Answer: Step 1 − Create a folder called modules inside your project root. ... 
Step 2 − Inside the hello folder, create a file Hello. ... 
Step 3 − Now, add two more directories inside the hello folder − controllers and views. ... 
Step 4 − Inside the custom directory, create a file called greet. ... 
Step 5 − Modify the config/web.