Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Tuenti - Hardcore PHP - UAM
Search
Kartones
November 24, 2011
Programming
1
200
Tuenti - Hardcore PHP - UAM
@ Universidad Autónoma de Madrid (2011)
Kartones
November 24, 2011
Tweet
Share
More Decks by Kartones
See All by Kartones
Building Autonomous Agents with gym-retro
kartones
0
42
Python static typing with MyPy
kartones
0
64
High-impact refactors keeping the lights on
kartones
0
63
Remote Work
kartones
0
83
Geospatial CSV Imports Hidden Complexity
kartones
0
46
Intro to GameBoy Development
kartones
0
94
Myths & The Real World of OpenSource Development
kartones
0
45
CartoDB Tech Intro
kartones
0
44
Copy Protection & Cracking History
kartones
0
120
Other Decks in Programming
See All in Programming
さいきょうのレイヤードアーキテクチャについて考えてみた
yahiru
1
540
Compose でデザインと実装の差異を減らすための取り組み
oidy
1
240
動作確認やテストで漏れがちな観点3選
starfish719
5
880
Spring gRPC について / About Spring gRPC
mackey0225
0
180
[Fin-JAWS 第38回 ~re:Invent 2024 金融re:Cap~]FaultInjectionServiceアップデート@pre:Invent2024
shintaro_fukatsu
0
360
traP の部内 ISUCON とそれを支えるポータル / PISCON Portal
ikura_hamu
0
230
Flatt Security XSS Challenge 解答・解説
flatt_security
0
1.1k
Scaling your build logic
antalmonori
1
150
『改訂新版 良いコード/悪いコードで学ぶ設計入門』活用方法−爆速でスキルアップする!効果的な学習アプローチ / effective-learning-of-good-code
minodriven
29
4.8k
令和7年版 あなたが使ってよいフロントエンド機能とは
mugi_uno
12
6.1k
[JAWS-UG横浜 #79] re:Invent 2024 の DB アップデートは Multi-Region!
maroon1st
0
130
定理証明プラットフォーム lapisla.net
abap34
1
670
Featured
See All Featured
The Pragmatic Product Professional
lauravandoore
32
6.4k
Measuring & Analyzing Core Web Vitals
bluesmoon
6
220
Automating Front-end Workflow
addyosmani
1367
200k
For a Future-Friendly Web
brad_frost
176
9.5k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
44
7k
Raft: Consensus for Rubyists
vanstee
137
6.8k
YesSQL, Process and Tooling at Scale
rocio
171
14k
It's Worth the Effort
3n
184
28k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
29
990
The Language of Interfaces
destraynor
156
24k
Gamification - CAS2011
davidbonilla
80
5.1k
How to train your dragon (web standard)
notwaldorf
89
5.8k
Transcript
None
None
INTRO • Senior Frontend Engineer @ Tuenti • C#/.NET background,
now a bit of PHP knowledge •
[email protected]
• twitter.com/kartones
AGENDA • The Goal • Shared Hosting to Tuenti-like scale
webs • Typical PHP • PHP Practices • Coding Practices • Web Practices
THE GOAL
THE REAL GOAL Avoid the PHP joke
THE REAL REAL GOAL Build quality PHP code
SHARED HOSTING Internet Frontend + DB
FIRST SPLIT Internet Frontend DB
MORE FRONTENDS Internet Frontends DB
CACHING TIME Internet Frontends DB Cache
MORE CACHING Internet Frontends DB Cache
MASTER/SLAVE DBS Internet Frontends DBs Cache
TUENTI (OVERVIEW) Internet Farm 1 Farm 2 Farm N Others
Frontends Caches DBs
TYPICAL PHP •HTML + PHP script blocks + DB Queries
•If lucky, separated into ¨functions¨ and templates (PHPBB, Wordpress…) •No Object Orientation
TYPICAL PHP News since your last visit: <ul> <? $e
= $_POST['email']; $news = mysql_query("SELECT * FROM news WHERE email='{$e}'"); […] foreach($news as $newsItem) { ?> <li><?=$newsItem[0]?></li> <? } ?> </ul>
TYPICAL PHP News since your last visit: <ul> <? $e
= $_POST['email']; $news = mysql_query("SELECT * FROM news WHERE email='{$e}'"); […] foreach($news as $newsItem) { ?> <li><?=$newsItem[0]?></li> <? } ?> </ul>
TYPICAL PHP News since your last visit: <ul> <? $e
= $_POST['email']; $news = mysql_query("SELECT * FROM news WHERE email='{$e}'"); […] foreach($news as $newsItem) { ?> <li><?=$newsItem[0]?></li> <? } ?> </ul>
TYPICAL PHP News since your last visit: <ul> <? $e
= $_POST['email']; $news = mysql_query("SELECT * FROM news WHERE email='{$e}'"); […] foreach($news as $newsItem) { ?> <li><?=$newsItem[0]?></li> <? } ?> </ul>
TYPICAL PHP function crop_string($string) { if (strlen($string) > 30) {
$string = substr($string, 0, 30) . “…”; } return $string; } $text = crop_string(“developers,developers,developers,developers”);
TYPICAL PHP class StringHelper { const CROP_ELLIPSIS = ‘…’; const
CROP_DEFAULT_SIZE = 30; public static function Crop($text, $cropLength = self::CROP_DEFAULT_SIZE) { if (mb_strlen($text) > $cropLength) { $croppedText = substr($text,0,$cropLength) . Self::CROP_ELLIPSIS; } else { $croppedText = $text; } return $croppedText; } $text = StringHelper::Crop(“developers,developers,developers,developers”);
PHP PRACTICES •PHP 5.3 (or the newest stable version) •Object
Orientation •Namespaces / structured source code tree
PHP PRACTICES •Layered code •MVC is typical and good Controller
Model View
PHP PRACTICES •Breaking loops is ugly for($i = 0; $i
< count($items); $i++) { if ($items[$i] == searchedItem) { break; } }
PHP PRACTICES •Break-free $found = false; for($i = 0; $i
< count($items) && !$found; $i++) { if ($items[$i] == searchedItem) { $found = true; } }
PHP PRACTICES • Try to keep memory usage low •Less
memory, more concurrent PHP processes • unset() • ini_set(“memory_limit”,”8M”);
PHP PRACTICES •Singleton in PHP != Singleton in Java/C#/C++ •Same
PHP execution = same singleton •2 page requests = 2 different singletons •Terribly dangerous in tests •Implement a ¨flushSingleton()¨ static method
PHP PRACTICES •Homogeneous code •Comments •@author tag (Sign your code!)
•Proper variables casing & naming •Good source tree = easy to guess where to find a class •Avoids personal bad practices
PHP PRACTICES • Avoid non testeable objects class Game {
private $player1 = new GamePlayer(); private $player2 = new GamePlayer(); public function Play() { // Logic that uses $player1 & $player2 } }
PHP PRACTICES • Create testeable objects class Game { private
$player1 = null; private $player2 = null; public function __construct(IGameEntity $playerA, IGameEntity $playerB) { $this->player1 = $playerA; $this->player2 = $playerB; } public function Play() { // Logic that uses $player1 & $player2 } }
PHP PRACTICES • Defensive Programming • defined() • isset() •
class_exists() • method_exists()
CODING PRACTICES Learn & use Source Code Control •Distributed •Best
options: SVN,Git, Mercurial •Always linked to a ticket control system •Learn to branch, diff, merge, resolve conflicts •Hard at first, pays off in big projects
CODING PRACTICES Learn & do Testing •Unit tests •Test DB
data (Fixtures) •Mock Objects •Integration tests •Acceptance tests
WEB PRACTICES •Learn Kung-fu: •HTTP protocol basics •Some Javascript •Minimal
CSS •Robots.txt •Favicon.ico •Sitemap.xml •Cookies •Encoding •Web Security basics
WEB PRACTICES •Minimize HTML, CSS, JS •Google closure Compiler •YuiCompressor
•Firebug •Use tools to detect improvements: •PageSpeed (Firefox/Chrome) •YSlow (Firefox) •MySpace Performance Tracker (IE)
WEB PRACTICES •Use the client to store data •Cookies (4KB
max) •LocalStorage (HTML5) •Global scoped Javascript variables (AJAX only) •Javascript Datasources (Tuenti AJAX)
WEB PRACTICES •If you don’t need realtime, be lazy •Lazy
loading •Lazy deletion •Job queues instead of realtime operations
THE END ¿Questions? http://dev.tuenti.com http://jobs.tuenti.com