Zend Framework 2 - long-awaited improvements in Controller and View
The other day I tried the new ZF2. I re-read a bunch of material, collected a simple saytik on their tutorial. And when I reached the creation of Action and View'hi, then the limit of my joy knew no bounds. Passing variables to the view is now done via return, and they become local (no $ this-> param). Only for the sake of this improvement, I am ready to switch to ZF2 right now, despite the fact that it is in beta.
Under the cat you will find: a brief about innovations, about performance and about changes regarding the controller and view templates.
Innovations ZF2, which everyone talks about:
- improved performance
- more flexible approaches, improvements in standardization and unification are used
- redesigned model for working with plugins
- widespread use of namespaces
- no more calls to require_once inside components (all via autoloader)
- 2 new basic components of Dependency Injection and EventManager (DI is unquestionably cool, but it scares its magic of setting parameters to objects by the names of variables in methods. Usually such magic negatively affects performance. EventManager is a handy thing. Logging, caching, pre- and post-processing data is now at the highest level)
')
Concerning ZF2 performance
- at the expense of new autoload, Class Map gives up to 85% performance improvement compared to ZF1
- use of namespaces up to 40% (at first I thought it was a minor bun in PHP5.3 and is purely aesthetic)
- reduced number of calls when using plugins (7 calls instead of 13, I think we can talk about double acceleration)
- M VC refactoring (should accurately give a tangible increase in performance. The usability has improved by an order of magnitude.)
Long-awaited improvements in Controller and View
Finally accomplished! In action controllers, the transfer of variables has ceased to be magic. Instead of the ugly $ this-> view -> ..., now the action should return an associative array with the data for the view. I will give examples for comparison.
It was ZF1:
public function indexAction ( )
{
$ this -> view -> albums = $ this -> albumTable -> fetchAll ( ) ;
$ this -> view -> user = 123 ;
$ this -> view -> text = 'any <html> it will not be automatically escaped in view' ;
}
It became ZF2:
public function indexAction ( )
{
return array (
'albums' => $ this -> albumTable -> fetchAll ( ) ,
'user' => 123 ,
'text' => 'any <html> it will be automatically escaped in view' ,
) ;
}
View templates are also transformed for the better. Variables became local (available by their name), and helpers remained available through $ this-> helper (). All string variables are automatically escaped to avoid XSS. Arrays and objects remain unchanged, therefore, when deriving values from them, it is necessary to pass through $ this-> escape ();
Writing and reading code has become more convenient.
It was ZF1:
<? php
$ this -> headTitle ( 'My albums' ) ;
?>
<? php
foreach ( $ this -> albums as $ album ) {
// some code
}
?>
<? php
echo $ this -> escape ( $ this -> text ) ;
?>
It became ZF2:
<? php
// all helpers are also available via $ this
$ this -> headTitle ( 'My albums' ) ;
?>
<? php
// the albums from the action from the example above are available via a local variable
foreach ( $ albums as $ album ) {
// some code
}
?>
<? php
// there is no need to call escape, all scalar values are automatically escaped
// arrays and objects are skipped and get into view as is
echo $ text ;
?>
In my opinion this is the most "delicious" improvement in ZF2.
How to try and what to read
Zend Framework 2 is in beta state. I saw somewhere that the stable release will be in the spring of 2012. But you can use it at your own risk now.
Be sure to put the latest PHP 5.3.8. On PHP 5.3.2, I got a Strict Standart error.
Under Windows, I had to install a new Apache 2.4 compiled for VC9 . Download PHP x86 TS VC9 from here , extensions apc and mongo from here , pick up php_xdebug.dll on the official website by sending your phpinfo in a form.
First of all, read a good article in Russian "Zend Framework 2. Materials for study" on the site tokarchuk.ru.
Then use the wonderful tutorial Getting Started with Zend Framework 2 (PDF, en), with which you will install ZF2 in an hour or two and create a test module "album".
Source: https://habr.com/ru/post/135768/
All Articles