Thursday, May 2, 2013

php5 support multiple inheritance using magic method simple example

<?php
/**
 * Abomination class implementing multiple inheritance via
 * __call magic method
 *
*//------------------------object class--------------------------------------------------
abstract class MultipleInheritance
{
    /**
     * List of parent classes
     *
     * @var array
     * @access protected
     */
    protected $_parents = array();   

    /**
     * List of parent objects - generated automatically
     *
     * @var array
     * @access private
     */
    private $_parentObjects = array();

    /**
     * Constructor (thank you captain Obvious)
     *
     * - init the parent objects
     *
     * @access public
     */
    public function __construct()
    {
        foreach ($this->_parents as $parentClass) {
            $this->_parentObjects []= new $parentClass();
        }
    }

    /**
     * __call magic method
     *
     * @param string $name
     * @param array $arguments
     * @access public
     * @return mixed
     */
    public function __call($name, array $arguments)
    {
        foreach ($this->_parentObjects as $object) {
            if (method_exists($object, $name)) {
                return call_user_func_array(array($object, $name), $arguments);
            }
        }

        throw new Exception('No such method: ' . $name);
    }
}
//--------------------------------------------------------------------------
class first
{

    public function firstmethod()
    {
        echo 'first method call<br>' ;
    }   


}
//--------------------second------------------------------------------------------
class second
{
 

    public function sendmethod()
    {
        echo 'second method call';
    }   

}
//----------------------mainclass----------------------------------------------------
class mainclass extends MultipleInheritance
{
    protected $_parents = array('first', 'second');
}

$child = new mainclass();
$child->firstmethod();
$child->sendmethod();

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