Drupal 8 is a Great Way of Developing a Useful and Valuable Website – Part Six

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The world is changing and with that, the world of technology is changing as well, and everyone who is part of a society must adhere to new sets of rules and standards that come with a chance to develop a successful society.
In today’s article, we are going to continue talking about Drupal and focus again on coding standards. Formatting is part of Drupal’s coding standards, and it coves things such as whitespace, aspects which influence the format and appearance of your code and the way that the code should be structured.
Indentation in Drupal is very specific, developers should use 2 spaces of indentation, although there is much debate in the programming world, about indentation. The way to end your code on a file would be to leave one extra blank line at the end of the file, this file ending structure is known as the Unix file ending.
In Drupal, operators should always have one space around them, specifically the ones that are enclosed under parenthesis. For example,

 if ($a == 'system' || $b == 'system') {    return $a == 'system' ? -1 : 1;  }

Declaring and calling a function also follows coding standards, which describes that the argument list should come before putting a space. Before the operating curly brackets, should also have space before it. Parameters may be part of a function, if this is the case, then, they should be separated by a comma, followed by a space.

In Drupal, there are reserved words known as constants, which follow coding standards as well. Constant must always be capitalized in Drupal, some of them are: TRUE, FALSE, and NULL and as you can see they are capitalized.  The known control structure items are: if, else, elseif, case, switch, for each, while, and do.

According to Drupal coding standards, there should be after the control structure term, and another space, before the opening curly brackets. Like functions, the closing brackets are on their own line and the statement inside one of the curly brackets is indented two spaces. A Drupal website development project must have standardized documentation, as part of its development, to understand Drupal’s code better.

When developers want to track what their code does, what variable it uses, what it returns, what to expect from the code, and what it returns, then he/she can always seek to well document their work. A developer’s code must be maintainable, by everyone and to ensure this take place, standardized documentation, must be used.

Documentation can clear a lot of misunderstandings and confusions, because a description of what parts of the code are doing, such as a function or large blocks of code, can be given during documentation, in the form of comments. Documentation can be written to give developers who read someone else’s code an overview of what a file contains, or what a piece of code is doing.

The Doc block is a block of information found at the top of a PHP file, or before each function, class definition or method. File doc block is also a block of information, which appears at the top of every PHP file, it is placed after a blank line and before another blank line. Tags can also be used in Drupal 8 documentation, they expected to go on a certain order, and indicate what a documentation in Drupal is all about.

Thank you for reading this file!!!

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