    <?php
    class Test
    {
    	function mamku() 
    	{
    		return "mamky ebal";
    	}
     
    	function __call($name, $arguments)
    	{
    		if (method_exists($this, $name)) {
    			return $this->{$name};
    		} else {
    			throw new Exception();
    		}
    	}
    }
     
    $test = new Test();
    $mamky = "mamku";
    var_dump($test->{$mamky}());
    // your code goes here