<?php
try {
class A {
    public function foo() {
        echo '1';
    }
}

A::has();    
} catch (Exception $e) {
    echo 'aaa';
    // var_dump($e->getMessage());
    // var_dump($e->getCode());
    // var_dump($e->getLine());
    // var_dump($e->getMessage());
}

exit;
class A {
    public static function foo() {
    	echo '1';
        static::who();
    }

    public static function who() {
        echo __CLASS__."\n";
    }
}

class B extends A {
    public static function test() {
    	echo '2';
        A::foo();
        parent::foo();
        self::foo();
    }

    public static function who() {
        echo __CLASS__."\n";
    }
}
class C extends B {
    public static function who() {
    	echo '3';
        echo __CLASS__."\n";
    }
}

C::test();

exit;

class Dome1
{
    private $var = array();

    public function __construct()
    {
        echo "__construct1 <br>";
    }

    final public function OtherClassfind(Dome1 $array)
    {
    	var_dump($array);
    }

    final public function arrayfind(array $array)
    {
    	var_dump($array);
    }

    final public function Traversablefind(Traversable $array)
    {
    	var_dump($array);
    }

    final public function callablefind(callable $array)
    {
    	var_dump($array);
    }


}
class foo
{
	public $a = 1;
	public $b = 1;
	public $c = 1;
}
$a = new Dome2;
$c = new foo;
// $a->OtherClassfind([1,2]);
$a->OtherClassfind($a);
$a->arrayfind([1,2]);
$a->Traversablefind($a->arrayfind([1,2]));
// $a->arrayfind(22);
// $a->find(1);

exit;
class Dome1
{
    private $var = array();

    public function __construct()
    {
        echo "__construct1 <br>";
    }

    final public function find()
    {
    	echo '1';
    }
}

class Dome2 extends Dome1
{
    private $var = array();

    public function __construct()
    {
        echo "__construct2 <br>";
    }
}

$a = new Dome2;
$a->find();

exit;
class MyIterator
{
    private $var = array();

    public function __construct()
    {
        echo "__construct <br>";
    }

    public function __set($name, $value) {
        echo "__set $name = $value <br>";
        $this->var[$name] = $value;
    }

    public function __get($name) {
        echo "__get $name <br>";
        var_dump( $this->var[$name]);
    }

    public function __isset($name) {
        echo "__isset $name <br>";
        var_dump( empty($this->var[$name]));
    }

    public function __unset($name) {
        echo "__unset $name <br>";
		// var_dump(unset($this->var[$name]));	
		unset($this->var[$name]);
    }

    public function __destruct() {
        echo "__destruct  <br>";
    }

    public function __call($name, $value) {
        echo "__call $name = $value <br>";
        echo '打断就不会报错';
        var_dump($name);
        var_dump($value);
    }

    public static function __callStatic($name, $value) {
        echo "__callStatic $name = $value <br>";
        var_dump($name);
        var_dump($value);
    }

    public function __sleep() {
        echo "__sleep <br>";
        return ['var'];

    }

    public function __wakeup() {
        echo "__wakeup <br>";
    }

    public function __toString() {
        echo "__toString <br>";
        return 'aaa';
    }

    public function __invoke( $name ) {
        echo "__invoke  $name <br>";
    }

    public static function __set_state( $name ) {
        echo "__set_state <br>";
        var_dump($name);
        return '';
    }

    public function __clone() {
        echo "__clone <br>";
    }
}
function f($obj){
	var_dump($obj);
}
$a = new MyIterator;
$a->b = 'c';
$a->c = 'd';
$a->d = 'e';
$a->e = 'f';
echo '---------------------------------------<br>';
$c = $a->b;
echo '---------------------------------------<br>';
echo $c;
echo '---------------------------------------<br>';
var_dump($a->b);
echo '---------------------------------------<br>';
empty($a->b);	
echo '---------------------------------------<br>';
unset($a->b);	
echo '---------------------------------------<br>';
unset($a->b);	
echo '---------------------------------------<br>';
isset($a->b);	
echo '---------------------------------------<br>';
empty($a->b);	
echo '---------------------------------------<br>';
@$a->runTest('in object context');	
echo '---------------------------------------<br>';
@$a::runTest('in object context');	
echo '---------------------------------------<br>';
$d = serialize($a);	
echo $d;
echo "<br>";
echo "<br>";
var_dump(unserialize($d));
echo '---------------------------------------<br>';
echo $a;
echo '---------------------------------------<br>';
$a('obj');
echo '---------------------------------------<br>';
$g = var_export($a, true);
var_dump($g);
eval('$b = ' . var_export($a, false) . ';');
echo '---------------------------------------<br>';
echo '---------------------------------------<br>';
echo '---------------------------------------<br>';
echo '---------------------------------------<br>';
echo '---------------------------------------<br>';
echo '---------------------------------------<br>';
echo '---------------------------------------<br>';