Moodle Standards Skill

Apply Moodle coding standards (PSR-12 + exceptions) to PHP code.

Trigger

• PHP files in Moodle plugin directories
• User requests code review or formatting
• New file creation in Moodle context

Actions

1. Validate Code Style

Check code against Moodle standards:

• Line length (132 ideal, 180 max)
• Array syntax ([] only)
• else if not elseif
• No closing ?> tag
• 4-space indentation

2. Fix Naming

Ensure proper naming:

• Variables: $lowercase (no underscores between words)
• Functions: component_function_name() (Frankenstyle)
• Classes: lowercase_with_underscores
• Constants: COMPONENT_CONSTANT_NAME

3. Add PHPDoc

Generate required documentation:

• File header with GPL
• @package tag (MANDATORY)
• @param with types
• @return description

4. Type Hints

Add mandatory type declarations:

• Parameter types
• Return types
• Nullable types (?type)

Validation Command

vendor/bin/phpcs --standard=moodle path/to/file.php

Quick Fixes

Missing Package Tag

/**
 * @package    mod_myplugin
 */

Wrong Array Syntax

// Before
$arr = array('a', 'b');
// After
$arr = ['a', 'b'];

Wrong Else If

// Before
} elseif ($x) {
// After
} else if ($x) {