相关疑难解决方法(0)

在PHP中,你的意思是函数重载和函数重写.它们两者有什么区别？无法弄清楚它们之间有什么区别.

我在PHP OOP手册http://www.php.net/manual/en/language.oop5.visibility.php中看到了这个,我无法理解为什么输出不是:Foo :: testPrivate Foo: :testPublic

class Bar 
{
    public function test() {
        $this->testPrivate();
        $this->testPublic();
    }

    public function testPublic() {
        echo "Bar::testPublic\n";
    }

    private function testPrivate() {
        echo "Bar::testPrivate\n";
    }
}

class Foo extends Bar 
{
    public function testPublic() {
        echo "Foo::testPublic\n";
    }

    private function testPrivate() {
        echo "Foo::testPrivate\n";
    }
}

$myFoo = new foo();
$myFoo->test(); // Bar::testPrivate 
                // Foo::testPublic