Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "PHP executes Drupal's front controller file (index.php), which then creates a new Request object from the resource that was requested."

A block of code is set as follows:

name: Hello World
description: Hello World module
type: module
core_version_requirement: ^9
package: Custom

Any command-line input or output is written as follows:

../vendor/bin/phpunit tests/Drupal/Tests/Core/Routing/UrlGeneratorTest.php  

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Users can now reach this page from the module administration page by clicking on the Help link for each individual module that has this hook implemented"

Tips or important notes

Appear like this.