PHP’s industrialization
The new frontier

Agenda
Scale up your work
Get the tools and methods
Go to the other sessions in Barcelona

Speaker
Damien Seguy
Expert Open Source services
Raise elePHPants
damien.seguy@alterway.fr

Yes,
we take
questions

Function lists
692 defined functions, 611 actually used
function CMP2() : 18 different definitions
fct_create_thjipk(), datefren(), fct_lstagt_key(),
phpinfo_system_old(), fct_repeat_even_requ(),
fct_vrai_champ_general()
Every one letter variable used : $a, $b, $c,...

Function spring cleaning
It’s time to check them
List them, see what they do
Refactor the code, remove doubles
Gather them in a central library, document them
Build a solid framework...

Function spring cleaning
It’s time to check them
List them, see what they do
Refactor the code, remove doubles
Gather them in a central library, document them
Build a solid framework...

Romantic PHP

Modern PHP

Reality check
65 portals next 6 months
6 people to upgrade 350 intranet
120 events sites a year on 150 servers
App on one city, cover 12 cities by xmas,
expand to 2 countries next year.
full time employee for deployements

PHP industrialization
Going from single to multiple
Being proactive, rather than reactive
Scale your work, not your server
Otherwise, go to Rasmus session

Stage 1
Conventions
IDE
VCS

Conventions
PEAR, Zend
Frameworks,
Symfony...
Choose one,
use one
Bring unity
Code_sniffer

IDE
Choose it for ease of use
Netbean / Symfony, Zend tools, Komodo / cakePHP
Code browser, editor, debugger, unit test integration,
VCS integration, framework integration.

VCS
Subversion, git, CVS, bazaar
Resolve conflicts
Stores and distribute the code
Allow versioning, paralell development, rollback
Code not in VCS does not exists

VCS Code
Bug Track Production
VCS
Continuous
Unit Test
integration

Recommanded sessions
Clean Code / Zend Framework

Stage 2
Methodologies
Frameworks
Tests

Methodologies
Explain how you produce code
Get your users involved
Make short cycles to deliver, adapt and polish
Agile methodologies :
SCRUM, XP, Lean SD, Open Unified Process

Short cycles

Frameworks
Frameworks
Choose one, for development speed
Components, conventions, scafolding, tests
Community, expertise, training

Unit Tests
PHP Unit, Simple Test, Lemon, Zend_Test, phpt

Tests helps decouple
Production
Avoid regression
Code Platform
Prevent your recall
Shows progress
Serves as manual
Help at communication
Customer
use

Functional tests
GreenPepper, Fitnesse

Recommanded sessions
Agile development for PHP, SCRUM con exito
Symfony 2.0
State of quality assurance tools

Stage 3
Conception
Continuous
integration
Automated
deploiement
Documentation

Automated deployment
Phing, maven, ant, pear
Needed for continuous integration
The forgotten part of development
Compulsory for large plat-forms, high scaling

Continuous integration
Check the code in back ground
phpUnderControl, Xinc, Hudson
Graphs the results
Compilation, code sniffer, unit tests, coverage
Log, inclusion, performances...
Share with the team

Conception
Class diagram, database schema, navigation
ArgoUML, StarUML, PowerArchitect
Describe the general organisation
List everything that will need name
Class, methods, constants, SESSION, includes...
Check the result

Conception
Document things before hand
Auto-generate phpdoc
Check usage in the code, check undocumented

Documentation
From developper to users
Have developper start it
Add comments
Turn it into a wiki

Recommanded sessions
Tallar de PHING
Continuous integration

Even further?
Continuous deployment (a la flickr)
Cross auditing
Collaborative auditing
Static analysis

Most tools come from Java
Hudson / Xinc
Junit / PHPUnit
CheckStyle / Code Sniffer
UML to PHP (but not the reverse)
Static audit analysis? Code navigation ?
Code audit tool ? almost...

Questions?
damien.seguy@alterway.fr

Documentation
Level 0 : in code
Level 1 : automated, manual
PHPdoc, PHPdocumentor, Doxygen
Level 2 : Wiki, blogues
Level 3 : books, conferences

Scaling up coding
Do more
Leave part of it to others

Handling bugs
Level 1 : manual test before production
Level 2 : automate tests before production
Level 3 : hand out tests to functional

Tools
Firefox, Web Developper
PHP Unit, Simple Tests, phpt, Push 2 Test
GreenPepper, Fitnesse

More tests
Get more tests
Hand them to your
users
Use them in
requirements
Use them for docs

Team
Conception à cycles courts
Conventions de programmation
Mantras de programmation
Audits croisés

Code
Frameworks
Business libraries
Code repository
Static audits

Progression
Tests unitaires
Tests fonctionnels
Intégration continue
Documentation automatique
Suivi des conventions

Production
Déploiement automatique
Tests d’IHM
Suivi des bugs

Avoid dead end tools
Writing comments that are rarely read
Producing doc ?
Reusing unit tests ?

Scale up your work
direct communication is OK for 2
mail is OK for 4
mantis is better

Aspects
Automation
API, PHPUnit,
Including users in the tests
Standards (SOAP/WSDL)

3 phases of evolution
Experimentation
Mission critical
Strategy

Approach of coding
We’ll do what we need
We’ll gather in the end to make this a good library
This shows a lack of anticipation

Tools without method