问题
PHP5 has a "magic method" __call()that can be defined on any class that is invoked when an undefined method is called -- it is roughly equivalent to Ruby's method_missing or Perl's AUTOLOAD. Is it possible to do something like this in older versions of PHP?
回答1:
The most important bit that I was missing was that __call exists in PHP4, but you must enable it on a per-class basis by calling overload(), as seen in php docs here .
Unfortunately, the __call() function signatures are different between PHP4 and PHP5, and there does not seem to be a way to make an implementation that will run in both.
回答2:
I recall using it, and a little bit of googling suggests that
function __call($method_name, $parameters, &$return)
{
$return_value = "You called ${method_name}!";
}
as a member function will do the job.
来源：https://stackoverflow.com/questions/76328/is-there-a-way-to-emulate-php5s-call-magic-method-in-php4