复制代码 代码如下:

class Bar

{

public function test() {

$this->testPrivate();

$this->testPublic();

}

public function testPublic() {

echo "Bar::testPublicn";

}

private function testPrivate() {

echo "Bar::testPrivaten";

}

}

class Foo extends Bar

{

public function testPublic() {

echo "Foo::testPublicn";

}

private function testPrivate() {

echo "Foo::testPrivaten";

}

}

$myFoo = new foo();

$myFoo->test(); // Bar::testPrivate

// Foo::testPublic

为啥第一行会输出Bar::testPrivate呢？

一些资料：

http://www.jb51.net/article/31709.htm

还有php官网上，关于这段代码的贡献者回复中，也找到了一条：

http://www.php.net/manual/zh/language.oop5.visibility.php#87413