PHP 5.4 - Begin your love affair with traits

PHP 5.4Begin your love affair with Traits- Graham Weldon

Graham WeldonPHP developer since... foreverCakePHP contributor/ evangelistSerial conference speakerGaming enthusiastBeer drinkerhttp://grahamweldon.comhttp://cakedc.comhttp://cakephp.orgTwitter: @predominant

SydPHPWe’ve got awesome stuff coming upVisit us! http://sydphp.orgNovember MeetupDecember “Phunconference 2”January Australia Day BBQ

What PHP Version? PHP 4 PHP 5.1 PHP 5.2 PHP 5.3 PHP 5.4 PHP 6 (Yes, there are some people using it)

100 75 50 25PHP 3 PHP 4 0 PHP 5 PHP 6 Data courtesy of w3techs.com

80 60 40 205.0 5.1 5.2 0 5.3 5.4 Data courtesy of w3techs.com

Traditionally slow adopters PHP 4 to PHP 5 was a painfully slow upgrade for the global community Shared hosts retained old versions Object handling was different PHP 5.1 on CentOS People don’t upgrade stable systems PHP 5.2 massive exposure Again, people don’t upgrade stable systems PHP 5.3 used, but not fully

Why slow adopters? Shared hosts Established applications Upgrade path Old excuses

Why adopt early? New language features More elegant ways to solve problems Cleaner code Adopting early gets you noticed

What about instability? Be sensible with production-ready systems Don’t use the bleeding edge Conﬁrm functionality Unit Testing Integration testing Load testing If your tests pass, then phase in the new system Use sensible reporting / monitoring

Enter PHP 5.4 (RC1)

PHP 5.4-RC1 RC1 was released for QA on 11th November 2011 Some new features, plenty of bug ﬁxes You can download it for yourself! http://qa.php.net/ Give it a try See if your applications run on it

PHP 5.4New Language Features and Improvements

Upload Progress

Binary Notation!

Array short syntaxhttps://wiki.php.net/rfc/shortsyntaxforarrays

Array dereferencinghttps://wiki.php.net/rfc/functionarraydereferencing

Class member access on instantiation

Closures (Current)

Closures (Array)https://wiki.php.net/rfc/indirect-method-call-by-array-var

But this doesn’t work... :-(

Closures and ‘$this’https://wiki.php.net/rfc/closures/object-extension

Callable Typehinthttps://wiki.php.net/rfc/callable

JsonSerializable Interface

Short Tag echo - Always available

Oh, and there is a built-inweb server now. Yay?

https://wiki.php.net/

PHP Traits

Whats the big deal? Elegant code re-use Without complicated multiple inheritance No diamond issues Kinda like interfaces But provides implementation Other languages are doing similar things PHP is keeping up with the trends

A look atGolang interfaces

PHP’s approach Traits deﬁne small sections of reusable code This code can be included in any class There is a loading precedence order Puts developers in control Looks a feels natural No need to write things twice Override capabilities

PHP TraitsExample

PHP TraitsReal Example

SometimesTraits needAdjustmentMaybe log() needs tobe public in youruse case.

ChangeMethodsas you likelog() is now accessibleto the User instancein this context.

CustomiseFurtherChange method namesif you’re into thatsort of thing.Provide preferences.

Graham Weldon Twitter: @predominant http://grahamweldon.com Its over! http://cakedc.comQuestions? http://cakephp.org Get in touch if you want to know more about this presentation, PHP in general, or anything. :-)

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PHP 5.4 - Begin your love affair with traits

by Graham Weldon on Nov 11, 2011

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PHP 5.4 - Begin your love affair with traits — Presentation Transcript