2010.03.10. 14:41 keltezéssel, Bob McConnell írta:
I think it cannot be that the evaluation order of the parameters is implementation dependent.From: Auke van SlootenIn a hobby project I'm relying on the order in which the followingpieceof PHP code is executed: $client->system->multiCall( $client->methodOne(), $client->methodTwo() ); Currently PHP always resolves $client->system (and executes the __geton$client) before resolving the arguments to the multiCall() methodcall.Is this order something that is specified by PHP and so can be relied upon to stay the same in the future or is it just how it currentlyworks.If it cannot be relied upon to stay this way, I will have to rewritethemultiCall method and API...Think about it from the parser's point of view. It has to evaluate $client->system to determine the parameter list for multiCall(). Then it has to evaluate those parameters before it can stuff their values into the stack so it can call the function. But, whether it evaluates the parameter list left-to-right or vice versa is implementation dependent. I don't believe you can rely on it always being the same unless you always use the same interpreter. Bob McConnell
Just think about it: $someobject->method($a++, $a++);What will be the result? Or there has to be some directive to tell the parser to evaluate the parameters from left to right or vice versa.
And if there isn't, in some future release, there has to be. SanTa
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