Coding standards
Some quick notes for the WordPress Coding standards (PHP)
- php opening and closing tags must be on a line by themselves.
- don’t use short php tags (<? ?>)
- If our code is not processing any variable or information, use single quotes, else use double quotes.
- We can also do like below
Instead of this
echo "This is a test string with $number number";We can do
echo 'This is a test string with {$number} number';- Use lowercase in variables, actions & filter, function names
- DON’T USE CAMEL CASE
- Prepend
class-to class file names and format should beclass-{class_name}.php - USE SPACE -> USE SPACE TO MAKE YOUR LOGICS STAND OUT
- For e.g.
function( $param1, $param2 );
if( ! empty( $string ) ) {
}- For array use space only if its a variable in index.
Indentation
- Code must look like it’s together, For e.g.
Look at the extra space added to make it match with the indentation.
Braces
- Braces should be used even if they are not required. i.e.
- Inline control structure is not allowed.
Array
- Describe array with the long array structure i.e. array()
- Better readability and better support
- Main thing, do validation and sanitization everywhere, never trust user input.