Recently i came up with this solution for enums in php:
class Enum implements Iterator {
private $vars = array();
private $keys = array();
private $currentPosition = 0;
public function __construct() {
}
public function current() {
return $this->vars[$this->keys[$this->currentPosition]];
}
public function key() {
return $this->keys[$this->currentPosition];
}
public function next() {
$this->currentPosition++;
}
public function rewind() {
$this->currentPosition = 0;
$reflection = new ReflectionClass(get_class($this));
$this->vars = $reflection->getConstants();
$this->keys = array_keys($this->vars);
}
public function valid() {
return $this->currentPosition < count($this->vars);
}
}
Example:
class ApplicationMode extends Enum
{
const production = 'production';
const development = 'development';
}
class Application {
public static function Run(ApplicationMode $mode) {
if ($mode == ApplicationMode::production) {
//run application in production mode
}
elseif ($mode == ApplicationMode::development) {
//run application in development mode
}
}
}
Application::Run(ApplicationMode::production);
foreach (new ApplicationMode as $mode) {
Application::Run($mode);
}
it works just perfect, i got IDE hints, i can iterate through all my enums but i think i miss some enums features that can be useful. so my question is: what features can i add to make more use of enums or to make it more practical to use?
