As title indicates, i am wondering whther it is possible to create a method like `$app->register('abc', function($a, $b) { return $a."<br>".$b; });` and then use it like `echo $app->abc("hello", "xxx");` Thanks.
As title indicates, i am wondering whther it is possible to create a method like
`$app->register('abc', function($a, $b) {
});`
and then use it like
echo $app->abc("hello", "xxx");Thanks.