1 class TestClass{
 2     private $number;
 3     private $name;
 4 
 5     public function __construct(){
 6         $this->number=123;
 7         $this->name="test";
 8     }
 9 
10     public function printstu_info(){
11         echo "the student number is {$this->number},and name is {$this->name}";
12     }
13 }

1 prod_class=new ReflectionClass('TestClass');
2 $instance=$prod_class->newInstance();
3 $instance->printstu_info();

1 $test=new TestClass();
2 $test->printstu_info();