Development Guide
1 Introduction
2 Architecture
3 General PHP Coding Conventions
4 Template Engine
5 Request Control Flow - $ilCtrl
6 Services
7 CSS/Less Guidelines
8 Special Features for Developers
9 Unit Tests
10 Database Access and Database Schema
11 Active Records
12 Advanced Data Types (ADT)
13 Using Exceptions
14 Internationalization
15 Access Control
16 User Data
17 User Interface Components
18 Dates and Time Zones
19 Repository
20 Plugins
General: Plugins and Plugin Slots
General: Implementing Plugins
Repository Object Plugins
Global Screen Extensions
User Interface Plugins
Cloud-Module Plugins
Page Component Plugins
Test Question Plugins
Test-Export Plugins
Test-Signature Plugins
Cron Plugins
Field-Type Plugins
OrgUnit Extension Plugin
PDF Renderer Plugin
21 SOAP Interface
22 Import/Export
23 Event Handling
24 Cron
25 Context
26 Learning Progress
27 Taxonomies
28 Notifications
29 Logging
30 Competences
31 Continuous Integration
32 Online Help
33 Email Text Templates
The "phpcpd" target generates an xml-file that holds locations of duplicate code. Duplicate code violates the DRY-principle (Dont Repeat Yourself) and should be double checked if it's really really necessary.
Prerequisite is, that your build includes the "phpcpd" target, which writes a file build/logs/pmd-cpd.xml
This is the report you get, browsable:
