Hello D., no, the compiler generates code that makes the executor generate the variable and complain prior to performing the call. In a zend extension you could try to hook into that process.
marcus Friday, May 12, 2006, 12:49:45 AM, you wrote: > All, > Is there a way to define a function in an extension which would not > require a passed in variable to exist? In other words, can ZE be > modified to allow extensions to not trigger E_NOTICE warnings if an > unset variable is passed to a function which does not care if the var is > set? > I can specify preferences about whether variables are passed by > reference or not using macros like: > * PHP_FE(..., first_arg_force_ref) > * PHP_FE(..., third_arg_force_by_ref_rest) > * PHP_FE(..., first_through_third_args_force_ref) > Which probably boil down somewhere into: > * #define ZEND_SEND_BY_VAL 0 > * #define ZEND_SEND_BY_REF 1 > * #define ZEND_SEND_PREFER_REF 2 > And I notice that if a variable is passed by reference to an extension > function, no E_NOTICE is thrown. Well, can we extend this concept > further to say something like: > * #define ZEND_SEND_WHO_CARES_IF_IT_EXISTS_OR_NOT 4 > *but with a better name, of course* > Then, extension developers can write 'ifsetor', 'coalesce', and 'filled' > as extensions (by themselves) and not need those specific functions > added to the 'PHP core language' per-se. > Dante Best regards, Marcus -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
