How can I make set_error_handler() call a method on an object?

Question

I think about using the set_error_handler() functionality in PHP to handle most of the PHP errors in one place (logging them to a file). From the documentation

Answer 1

In PHP 5.3 you could do it in a closure:

$that = $this;
set_error_handler( function() use ($that) { $that->customErrorHandler(); } );