Re[2]: [PHP] nested, referenced foreach & implicit current array pointer issues

From: Date: Tue, 30 Jan 2007 20:46:36 +0000
Subject: Re[2]: [PHP] nested, referenced foreach & implicit current array pointer issues
References: 1 2  Groups: php.general 
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Hello Martin, > Tuesday, January 30, 2007, 8:45:50 PM, you wrote: > > function f() > { > global $arr; > > foreach($arr as $k=>$v) { > $v->do_something(); > } > } > > I don't see your point anywhere... foreach iterates over a copy of > the array so where is the potential side-effect? Even so there will > be references if the items of the original array are references, or > if they are objects in PHP5, but that's expected behaviour. That's > the way many OOP languages have been implemented (eg: Java) without > coders having the problems you mention. Just give me one good > reason to even consider your proposal. Humm, you seem to have misunderstood (& that could be one reason in itself). In my example foreach() iterates over the original $arr array (contrary to what you say) - and so may deeply nested fns in the called do_something() method, making global + foreach construct unuseable/"unstable" in non-trivial cases. -- Best regards, speedy mailto:speedy.spam@gmail.com

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