Re: json_encode ignores protected/private class members

2008/10/10 Jarismar Chaves da Silva <jarismar_silva@adplabs.com.br>: > > > Rodrigo Saboya wrote: >> >> Jarismar Chaves da Silva wrote: >>> >>> I agree with you. >>> But when using json_encode I believe the developer wants to transfer the >>> complete object state, just like when using serialize. >>> Serialize does see private/protected class members, while json_encode >>> not. >>> Javascript does not have class-accessors so why not convert >>> protected/private to public javascript attributes. >> >> In theory only the public members are relevant to anyone except the object >> itself. If you need information about private/protected members you are >> either using the wrong visibility for your variables or using json for >> something it's not supposed to do. > > Yes, of course. But currently json_encode ignores the attributes even if the > call is from inside the class. > <?php > class Person { > protected $name; > > public function __construct($sName) { > $this->name = $sName; > } > > public function toJSON() { > return json_encode($this); > } > } > > $person = new Person('jaris'); > print $person->toJSON(); // ==> will print an empty object e.g. {} > ?> > > I don't know if I'm using json_encode for something it's not supposed to do. > I'm using it to serialize an object to send it to another > runtime-environment in response to an remote call, just like what I can do > with SOAP, REST or RMI. In this context I don't see much sense in preventing > protected/private data from being transfered. > > Regards, > Jaris. > >> -- Rodrigo Saboya >> > > -- > > *Jarismar Chaves da Silva, M.Sc.* > > *ADP**Labs** Brazil** > *jarismar_silva@adplabs.com.br > <mailto:jarismar_silva@adplabs.com.br> > http://www.adp.com > > Let's just for example say that class X has the username and password values for the login system. You've made them private as only this class should access them. How are you going to stop the json_encode() from seeing them and passing them on. -- ----- Richard Quadling Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 "Standing on the shoulders of some very clever giants!"