自分のクラスで定義しているメソッドのみを返す: ReflectionClassを拡張して ref: http://qiita.com/items/1107

file0.txt

<?php

class Foo
{
    public function aaa()
    {
    }
}

class Bar extends Foo
{
    public function bbb()
    {
    }
}

class Baz extends Bar
{
    public function ccc()
    {
    }
}

class MyReflectionClass extends ReflectionClass
{
    /**
     * Gets a list of methods which are defined in the self class.
     * @param integer $filter
     * @return array
     */
    public function getMyMethods()
    {
        $myName  = $this->getName();
        $methods = call_user_func_array(array($this, 'getMethods'), func_get_args());

        foreach ( $methods as $key => $method )
        {
            $className = $method->getDeclaringClass()->getName();

            if ( $myName != $className )
            {
                unset($methods[$key]);
            }
        }

        return $methods;
    }
}

$fooClass = new MyReflectionClass('Foo');
var_dump($fooClass->getMyMethods());
/*
array(1) {
  [0]=>
  object(ReflectionMethod)#2 (2) {
    ["name"]=>
    string(3) "aaa"
    ["class"]=>
    string(3) "Foo"
  }
}
*/

$barClass = new MyReflectionClass('Bar');
var_dump($barClass->getMyMethods());
/*
array(1) {
  [0]=>
  object(ReflectionMethod)#3 (2) {
    ["name"]=>
    string(3) "bbb"
    ["class"]=>
    string(3) "Bar"
  }
}
*/

$bazClass = new MyReflectionClass('Baz');
var_dump($bazClass->getMyMethods());
/*
array(1) {
  [0]=>
  object(ReflectionMethod)#4 (2) {
    ["name"]=>
    string(3) "ccc"
    ["class"]=>
    string(3) "Baz"
  }
}
*/