class A{
public $a = 1;
protected $b = 2;
public function __construct()
{
echo 'fe'."\n";
}
public static function index(){
echo 'index'."\n";
}
protected function ddd(){
}
}
$a = new A;
$b = '';
// Check whether the class A is defined
echo class_exists('A')."\n";
// Gets an instance of the class $ a name
echo get_class($a)."\n";
// If it is not passed in the variable object type, a warning
echo get_class($b)."\n";
// returns public properties of the class array of
print_r( get_class_vars("A") );
// public method returns an array of subjects or classes consisting of
print_r( get_class_methods( $a ) );