reusable php stuff

accessible.php

<?php

trait Accessible {
	public function __get ($name) {
		$getter = 'get' . ucfirst($name);

		if (method_exists($this, $getter)) {
			return $this->$getter();
		} else if (property_exists($this, $name)) {
			return $this->$name;
		} else {
			throw new Exception("Undefined property: " . get_class($this) . "::$" . $name);
		}
	}

	public function __set ($name, $value) {
		$setter = 'set' . ucfirst($name);

		if (method_exists($this, $getter)) {
			return $this->$setter($value);
		} else if (property_exists($this, $name)) {
			return $this->$name = $value;
		} else {
			throw new Exception("Undefined property: " . get_class($this) . "::$" . $name);
		}
	}

	public function __isset($name) {
		return isset($this->$name);
	}

	public function __unset($name) {
		unset($this->$name);
	}
}

identifiable.php

<?php

trait Identifiable {
	protected $id;

	public function getId () {
		return $this->id;
	}
}

singleton.php

<?php

trait Singleton {
	static protected $instance;

	protected function __construct () {}
	protected function __clone () {}

	public static function getInstance () {
		if (!isset($self::instance)) {
			$self::instance = new $self();
		}

		return $self::instance;
	}
}