Every coder needs to follow a set of rules to code in any language. Drupal too follows a standard for coding and best practices to ensure the code is readable, manageable and editable.

1. Drupal Coding Standards
&
Best Practices

2. ✓ What are Drupal Coding Standards
✓ Why they Exists
✓ How to follow them.
Drupal Coding Standards
Drupal coding standard and best practices

3. Drupal Coding Standards
The Quality of your code is not just in its
execution but also in its appearance
Drupal coding standard and best practices

4. What is Coding Standard
A set of guidelines regarding naming
conventions and document formatting to
follow that dictate the writing style used
when working with a specific programming
language
Drupal coding standard and best practices

5. Why Coding Standards
“The point of a coding style standard is not to
say one style is objectively better than another
in the sense of the specific details….instead
the point is to set up known expectations on
how code should look!!”
- Paul M Jones
Drupal coding standard and best practices

6. Why Coding Standards
✓ Readability
✓ Maintainable Code
✓ Spot errors more easily
✓ Everyone on the same page
✓ Encourages collective ownerships
Drupal coding standard and best practices

7. Aren’t these just little details that don't
really matter
✓ they’re vs. their
✓ it’s vs. its
Drupal coding standard and best practices

8. Who Decides Coding Standards
✓ Well! We do, the coding standards are decided
by the drupal community
Drupal coding standard and best practices

9. How are they decided
✓ Drupal Standards are based on the PEAR
Coding standards
✓ They are decided in an issue queue of
https://www.drupal.org/project/coding_standar
ds
Drupal coding standard and best practices

10. How do we implement coding
standards
Drupal coding standard and best practices

11. Read the coding standards and keep
them handy
✓ They can change
✓ https://www.drupal.org/project/coding_standar
ds
Drupal coding standard and best practices

12. Review your own code with
coder/PHPCodeSniffer
Drupal coding standard and best practices

13. Team Code Reviews!!
✓ Make the time!
✓ The most successful teams build in time to
review one another’s code
✓ There is no substitute for code reviews by
another person
Drupal coding standard and best practices

14. Formatting
Drupal coding standard and best practices

15. General
Drupal coding standard and best practices
✓ Always use <?php
?> not <? ?>
✓ Exclude trailing ?>
✓ Unix new line
character
✓ 80 character per
line

16. Hooks
Drupal coding standard and best practices

17. Operators
Drupal coding standard and best practices
✓ Always use one space
on either side of the
operator

18. Control Statements
Drupal coding standard and best practices
✓ Space between
keyword and
parenthesis
✓ Always use curly
braces even when
optional
✓ elseif
✓ opening curly brace
on same line as
condition
✓ Closing curly brace
on line by itself

19. Calling function
Drupal coding standard and best practices
✓ No space between
function name and
parentheses
✓ Arguments separated
by comma
✓ No Extra space inside
paranthesis

20. Declaring function
Drupal coding standard and best practices
✓ No space between
function name and
parentheses
✓ Arguments separated
by comma
✓ Arguments with
default values at the
end of the list

21. Arrays
✓ Array declaration that's longer than 80
characters should be split into multi-line arrays
✓ New short array syntax standards
[“kittens”, “puppies”, “bunnies”] - Correct
✓ Old array
array(“kittens”, “puppies”, “bunnies”) -
Wrong
Drupal coding standard and best practices

22. Documentation
Why is documentation important?
It tells us what to expect from our code
Drupal coding standard and best practices

23. But I know what my code does!!!
Drupal coding standard and best practices

24. But my code is so good it's
self-documenting!!!!!
Drupal coding standard and best practices

25. DOC Blocks
✓ Specially formatted blocks of information that
goes on both top of the file and before each
function
✓ File Doc Blocks
✓ Function Doc Blocks
Drupal coding standard and best practices

26. API Module
✓ Why are these docblocks so important
✓ Why do they have to be formatted so exactly
✓ The API module parses the information in doc
blocks to human readable documentations
Drupal coding standard and best practices

27. Inline Comments
✓ // For inline comments
✓ Should be 80 characters long
✓ Must end in a fullstop
Drupal coding standard and best practices

28. Helpers
✓ Coder Module
✓ PHPCS + Coder Sniffer
✓ IDE/Editor Integration
Drupal coding standard and best practices

29. Dev Tips
✓ Understand the requirements clearly
✓ Do not hesitate to ask questions
✓ Consider others when you anything
Drupal coding standard and best practices

30. Dev Tips
✓ Read Code
✓ Use Issue ID along with GIT commit message
✓ Pay attention to machine names
Drupal coding standard and best practices

31. You are the painter, and code is your medium
Drupal coding standard and best practices

32. Thanks!
Drupal coding standard and best practices