Re: Variable-length args by reference

On 04/18/2012 12:02 AM, Stefan Neufeind wrote: > Hi, > > the topic of variable argument-lists for functions in connection with > getting the parameters by reference came up. This is currently not > possible with func_get_args(), though a "hack" with debug_backtrace() is > possible. > > How would you think about extending func_get_args() and func_get_arg() > to allow for: > > $args = func_get_args(FUNC_GET_ARGS_BY_REFERENCE); > $arg0 = func_get_arg (0, FUNC_GET_ARGS_BY_REFERENCE); > > (default would be FUNC_GET_ARGS_BY_COPY) > > > Currently only the following "hack" works: > > function calc() > { > $d = debug_backtrace(); > $args = $d[0]['args']; > $args[0] *= 2; > $args[1] *= 2; > } > > $a = 5; > $b = 7; > var_dump ($a, $b); > calc(&$a, &$b); > var_dump ($a, $b); Hmm, that example also only works because of the call-time pass-by-reference? *sigh* Sorry, I forgot those ampersands in the call to calc(). Doesn't work without. I hope the idea is clear though. Any chance we might make this possible through func_get_args()? Regards, Stefan