php constructor and destructor

class Human{

    public function __construct(){ //The constructor class, once instantiated, will be called

        echo 'aaa';

    }

    public function __destruct(){ // The destructor method is called when the object is destroyed

        echo 'bbb';

    }

    public function cc(){

        echo '11111';

    }

}

$a = new Human();

$a -> cc();

?>

Then the output result is aaa11111bbb       

Execution process After the class is instantiated, the constructor is executed first, the ordinary method is executed, and the destructor method is executed