PHP :: Sample OOP Style

oop_sample.php

<?php
/**
 * PHP OOP sample
 * Tutorial here: http://code.tutsplus.com/tutorials/object-oriented-php-for-beginners--net-12762
 */
  
class MyClass
{
	public $variable;
	public static $static_variable;

	public function __construct()
	{
		echo 'The '.__CLASS__.' is activated!';

		$this->variable = "variable value from class MyClass";
		self::$static_variable = 'i am a new static variable';
	}

	public function get_variable()
	{
		echo $this->variable;
	}

	public function set_variable($value)
	{
		$this->variable = $value;
	}

	public static function get_static_variable()
	{
		echo self::$static_variable . ' [updated]';
	}
}

class OtherClass extends MyClass
{
	public function __construct()
	{
		parent::__construct();

		echo '<br />';

		echo 'The '.__CLASS__.' is activated!';
	}
}

// init new class and run the __construct method inside it
$obj = new MyClass;

echo '<br />';

// set variable
$obj->set_variable('sublime text');

echo '<br />';

// get variable
$obj->get_variable();

echo '<br />';

// direct get variable from initiated class
echo $obj->variable;

echo '<br />';

// direct get static variable
echo MyClass::$static_variable;

echo '<br />';

// get static variable from a static function
MyClass::get_static_variable();

echo '<br />';

// init OtherClass that extends the MyClass
$other_obj = new OtherClass;

echo '<br />';

// get variable from the extended class (MyClass)
$other_obj->get_variable();