php_annotations_impl

Support for custom annotation in php

PHP ANNOTATIONS

This few but powerfull classes allow you to create your custom annotations and use them in the runtime envoirment like key => value objects.

The possibilities are a lot!! which include:

Mapping variables with database fields to dynamically fill the model object without to create a method for each table or query.

Generating runtime dynamically classes in runtime to provide injection like Dagger framework is doing in java or android.

Many others only your mind is your limit!!

Here is an example

  class DatabaseField extends AbstractAnnotation
  {
    protected $type;
    protected $name;
    protected $default;
  }
class UserModel
{
/**
* @Annotation DatabaseField {type=string, name=usr_firstname, default=pippo}
*/
private $name;
public function setName($value)
{
  $this->name = $value;
}

}
class DatabaseReader
{
public function getData()
{
$fetcher = new AnnotationsFetcher();
$databaseFields = $fetcher->getAnnotationsForProperty("UserModel", "name");
$nameField = $databaseFields[0];
$sql = "SELECT $nameField->getName() FROM users where usr_id = 10";
$rs = $db->exec();
$user = new UserModel();
$user->setName($rs[$nameField->getName()]);
}
}

Still need some imporvements but the potential of Annotations is big!!

Any interested in helping to make it better is welcome!!

In case you don't have php 5.4 you can still use it by moving all the code from the trait which is used by the abstract class AbstractAnnotation directly in the class and removing the use keyword.