Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We can either get the flags from a message by using the getFlags() method, or by using the hasFlag() method."

A block of code is set as follows:

<?php
echo $this->dateFormat(
    // Format the current UNIX timestamp.
    time(),

    // Our date is to be a LONG date format.
    IntlDateFormatter::LONG,

    // We want to omit the time, defining this is 
    // optional as the default is NONE.
    IntlDateFormatter::NONE

);

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

SampleModule/
  config/
    module.config.php
 language/
  src/
    SampleModule/
      Controller/
        IndexController.php
  view/
    samplemodule/
      index/
        index.phtml
  Module.php

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

php composer.phar update

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "After we have done all that we can, click on OK and you can choose a location to save our file."