PHP in a mobile ecosystem
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Updated version of my PHP in a mobile ecosystem talk. Looks at how PHP plays a role in the mobile world, and explains what php developers need to know about mobile development. Presentation delivered at the PHPBenelux 2011 conference and the PHP UK conference 2011.
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PHP in a mobile ecosystem
- 1. PHP in a Mobile Ecosystem Ivo Jansch January 28, 2011 - PHPBenelux Conference
- 4. Part 1 Let’s think about mobile for a few minutes
- 5. The Web is increasingly portable
- 6. It’s revolutionary Much like when the phone lost its wall socket
- 7. The Internet Of Things ivo-imac:~ ivo$ ping fridge PING fridge (192.168.1.138): 56 data bytes
- 8. The Web versus The Internet
- 9. Usage Characteristics On the go Short attention span Avoid typing To the point / ad hoc Omnipresent Context Awareness
- 11. Usage - ‘Couch Computing’ Relaxed Freedom Consumption Convergence Companion
- 12. Mobile Technologies Objective-C (iPhone, iPad, iPod Touch, Apple TV) Java (Android, Blackberry, Symbian) HTML5 / Javascript (Any) PHP (Any)
- 13. The App vs. The Browser
- 14. Browser based applications Write once, run anywhere Online Requires browser Page based ‘Stateless’
- 15. Native Apps On- and offline Event based Native device experience Convenient access to device features Stateful Monetization through App Stores
- 16. Some statistics Android Market: 100.000 apps Apple App Store: 300.000 apps Web: 3.000.000 websites optimized for mobile Sources: http://www.bizreport.com/2010/10/dotmobi-2000-growth-in-number-of-mobile-ready-websites.html# http://twitter.com/AndroidDev/status/28701488389 http://www.silobreaker.com/apples-app-store-crosses-300000-apps-5_2263799272514256896
- 17. Predictions
- 18. Part 2 Browser Based Mobile Apps
- 19. Device Detection It’s all in the User Agent Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version / 4.0.5 Mobile/8B117 Safari/6531.22.7 Mozilla/5.0 (Linux; U; Android 2.1-update1; nl-nl; HTC Hero Build/ERE27) AppleWebKit/ 530.17 (KHTML, like Gecko) Version/4.0 Mobile Safari/ 530.17
- 20. Device Detection
- 21. Device Detection http://detectmobilebrowsers.mobi/ Downloadable PHP library for device detection Online code generator Donationware Ugly code, well documented
- 22. Device Detection http://www.deviceatlas.com Database of device properties Available online, as API and downloadable json file Free for development ~99$/year for production http://wurfl.sourceforge.net/
- 23. Device Detection Considerations: Don’t redirect to homepage Offer ‘classic’ option Don’t make assumptions on screen size
- 24. Zend Framework Example Take advantage of ZF’s powerful MVC set up View scripts determine layout of actions Layout script wraps everything into main layout Use Bootstrapper to detect device and setup MVC
- 27. Bootstrap.php
- 28. Result Try it at http://egeniq.com/demo/zf/public
- 29. Zend_Http_UserAgent New in Zend Framework 1.11 Can work with WURFL or Device Atlas
- 30. UI Design Hover = evil ‘Finger Friendly Design’ ‘Touch Driven Development’ Screens are getting bigger and (!) smaller
- 32. HTML5 is easy <!doctype html> - period. <script> or <style> - period. Semantics: header, footer, section, article tags
- 33. HTML5 is powerful localStorage <video> <canvas> <svg> <input type=”number”> and many other form fields navigator.geolocation.getCurrentPosition();
- 34. Browsers love HTML5 Browsers supporting HTML5: Firefox Safari Opera All the mobile browsers IE (sort of, no support for <article> until IE9)
- 35. Things to consider Don’t just scale the layout, scale content too Consider ‘scenario based content management’
- 36. jQTouch
- 37. jQTouch iPhone experience in HTML5 http://jqtouch.com/ jQuery based MIT License Give it a try: http://jqtouch.com/preview/demos/main
- 38. Alternatives jQuery Mobile 1.0 alpha was released at October 16, 2010 http://jquerymobile.com/ Sencha Touch From the makers of jqTouch Tablet support http://www.sencha.com/products/touch/
- 39. You already know PHP Your PHP skills + HTML5 = easy mobile websites
- 41. PHP’s role in native apps iPhone Android Blackberry App App App API
- 42. Optimize APIs for mobile Content optimization Scalability Longevity Security Client/Server considerations
- 43. Content Optimization Consider CPU and memory constraints Prefer JSON over XML Compress data Keep responses small But not too small (connection / routing overhead)
- 44. Scalability AppStore featured/top listings Slashdot effect Consider the 80/20 rule of app popularity though
- 45. Longevity Apps have different deployment patterns No ‘quick fix’ in the application as in web apps Client/Server asynchronous updates Backwards compatibility Versioned API URLs: http://iportfolio.api.egeniq.com/portfolios/1.0/mvb/collections.json
- 46. Longevity How long do you support your APIs? Can’t force people to delete their Apps Provide clean fallback Synchronized instead of real-time data Implement status check API calls
- 47. API Security TLS/SSL Basic Auth OAuth? XAuth! PKI / TLSAuth Signed URLs: ?x=1&y=2 &signature=hash(secret, time limit, params)
- 48. Client/Server considerations Image Processing in the API, instead of App Use Imagick / GD etc. Trade-off between bandwidth and processing power Apps support threading / asynchronisity Fire-and-forget API design Prepare/getResult call duos Push features into PHP APIs for reuse
- 49. PHP’s role in native apps PHP has native support for: Web services JSON Compression Image manipulation Egeniq’s number 1 choice for App APIs 25-30% of App development time = API
- 50. Part 4 Best of Both Worlds
- 51. HTML5 in the App Store HTML5 on the server, supports PHP: IPFaces - http://www.ipfaces.org/ HTML5 on the device, no (or limited) support for PHP: AppCelerator - http://appcelerator.com/ Phonegap - http://phonegap.com
- 52. Cross Compilers = Instant Coffee
- 53. Part 5 Random bits if time permits
- 54. Running PHP on the device First: Why??! PHP For Android (PFA) http://phpforandroid.net/ PAMP for Symbian http://wiki.opensource.nokia.com/projects/PAMP
- 56. ‘Lemon ADE’ AST editor
- 58. Thank You ivo@egeniq.com http://www.egeniq.com @ijansch @egeniq Please leave feedback at: http://joind.in/2486
- 59. Credits Pictures used in this presentation are creative commons attribution licensed pictures. Here are the owners and the URLS where the originals can be found: ‘Dow says POO’ by Stepleton - http://www.flickr.com/photos/29407923@N03/2899705638/ ‘The telephone’ by Tylerdurden - http://www.flickr.com/photos/tylerdurden/529028040/ ‘Web’ by Kurtxio - http://www.flickr.com/photos/kurtxio/2182760200/ ‘Heavy cloud, no rain’ by Robynsnest - http://www.flickr.com/photos/robynsnest/12405841/ ‘Wireless fridge’ from http://www.wirelessgoodness.com/tag/srt746awtn/ ‘Army iphone app’ by Soldiersmediacenter - http://www.flickr.com/photos/soldiersmediacenter/4271795260/ ‘Carbon Fibre Wallet’ by Ryan Loos - http://www.flickr.com/photos/rh1n0/4157547404/ ‘Keys’ by Jamison Judd - http://www.flickr.com/photos/jamisonjudd/2419601050/ ‘Phone Girl’ by Steffen - http://www.flickr.com/photos/re-ality/460465894/ ‘Icon_safari_hires’ by Hans Dorsch - http://www.flickr.com/photos/hansdorsch/2861804087/ ‘Thinking’ by Karola - http://www.flickr.com/photos/karola/3623768629/ ‘Jus'a web’ by Jusfi - http://www.flickr.com/photos/jusfi/2921202536/ ‘iPad :)’ by Korosirego - http://www.flickr.com/photos/korosirego/4334862666/ ‘I've got a monkey on my back’ by Keven Law - http://www.flickr.com/photos/kevenlaw/2698946160/ ‘Add a spoonful of coffee’ by Martyn Wright - http://www.flickr.com/photos/35521221@N05/5181647830/ ‘Locked steel’ by Darwinbell - http://www.flickr.com/photos/darwinbell/321434733/ ‘4 Biscuits’ by Barnoid - http://www.flickr.com/photos/barnoid/2025811494/