[PEPr] Comment on PHP::PHP_Callback

Travis Swicegood (http://pear.php.net/user/tswicegood) has commented on the proposal for PHP::PHP_Callback. Comment: I feel I need to explain this proposal a little better, my apologies for not doing so in the first place. The main motivation behind this class is type hinting and callback validation; the ability to type hint for PHP_Callback object that has been pre-validated lends itself to a much more OO design. This does follow the Command pattern if you use Wikipedia's definition: "... the Command pattern is a design pattern in which objects are used to represent actions." Had I just implemented PHP_Callback::execute($callback[, $param, ...]), then yes this would be quite useless. However, by instantiating a PHP_Callback, you verify that the object represents a valid action within PHP's user-land. Calling addParameter() and/or addParameterByRef() you can load the callback so it can be repeated multiple times. I hope that helps clarify the intent. Proposal information: http://pear.php.net/pepr/pepr-proposal-show.php?id=482 -- Sent by PEPr, the automatic proposal system at http://pear.php.net