Re: call-time pass-by-reference feature really deprecated?

On Friday 20 June 2003 01:11, dorgon wrote: > > Maybe, there's a setting for this in php.ini. > > yes. there is: Yes, I know there is ;-) The 'maybe' is maybe you have it set different on the two systems. > >>declaration of [runtime function name](). If you would like to enable > >>call-time pass-by-reference, you can set > >>allow_call_time_pass_reference to true in your INI file. > > > > "pass-by-reference" has not been dropped, it is "Call-time > > pass-by-reference" which is being deprecated. > > so call-time pass-by-reference is giving parameters as reference to > functions, e.g. > > function returnObjectToAccumulator(&$obj) {...} > > If this feature is really dropped, how would you implement > ConnectionPools for DB-connections for instance, or any classes > managing a set of object and providing them by returning references? > > many OOP design patterns (primarily adopted from java) would not be > possible anymore. I think this would be worth talking about. > > Is there any plausible reason for that decision? "Call-time pass-by-reference" ============================= function doo($i_may_or_may_not_be_a_reference) { $i_may_or_may_not_be_a_reference++; } $i = 1; doo($i); echo $i; // 1 doo(&$i); echo $i; // 2 // here doo() is not defined to have parameters passed by reference. The decision on whether to pass by reference is made at run-time, hence call-time pass-by-reference. It is this behaviour which is being deprecated. So in the newer versions of PHP if call-time pass-by-reference is disabled and you wish to pass parameters by reference you'll have to define your functions accordingly: function doo(&$i_am_passed_by_reference) { ... } -- Jason Wong -> Gremlins Associates -> www.gremlins.biz Open Source Software Systems Integrators * Web Design & Hosting * Internet & Intranet Applications Development * ------------------------------------------ Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general ------------------------------------------ /* Federal grants are offered for... research into the recreation potential of interplanetary space travel for the culturally disadvantaged. */