Yes,thanks and I sorry for my poor english 2009/9/3 Robert Cummings <rob...@interjinn.com>: > hack988 hack988 wrote: >> >> Reference vars in php would not be unset if it reference by another >> var,so you must keep original var had'nt being reference. > > You can't reference a reference in PHP. If you take the reference of a > variable that is itself a reference then you are taking a reference to the > referenced value and not the reference variable itself. This is illustrated > in the following example: > > <?php > > $foo = '123'; > $fee = '987'; > > $blah = &$foo; > $bleh = &$blah; > $blah = &$fee; > > echo 'blah: '.$blah."\n"; > echo 'bleh: '.$bleh."\n"; > > ?> > > What I think you meant to say, is that a value is not unset as long as it > has at least one variable referencing it. You most certainly unset the > reference if you apply unset to it, it is the value referenced that may > remain. > > Cheers, > Rob. > -- > http://www.interjinn.com > Application and Templating Framework for PHP >
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