References to functions inside a class?

Can anyone point me to documentation on (or the subject of a previous discussion about) how to do something like this? <?php class Call { function Call($limit) { if($limit) $this->query() = &$this->query_l(); else $this->query() = &$this->query_u(); } } ?> PS: I'll even accept a pointer to discussion saying that it CAN'T be done...I know someone on this list was discussiing this at one pont, but I don't recall the discussion. Thanks. --Joey Smith Please forgive the long sig: *** Notice To Bulk Emailers: Attention! Pursuant to US Code, Title 47, Chapter 5, Subchapter II, 227, any & all unsolicited commercial e-mail sent to this address is subject to a download and archival fee in the amount of the $1500 US and copies will be forwarded to domain administrators. Emailing denotes acceptance of said terms!