Re: [SMARTY-DEV] mixing of asign() and assign_by_ref() overwrites external vars

--- Sebastian Mendel <lists@sebastianmendel.de> wrote: > Boots schrieb: > > > [...] > > It doesn't solve the problem: the original poster was mis-using the > > feature. > > :-( > > i dont think so! [..snip..] > > $myvar = true; > > var_dump($myvar); > echo '<br />'; > $test = new Smarty; > $test->assign_by_ref('myvar', $myvar); > $test_2 = $test; > $test_2->assign('myvar', false); > > var_dump($myvar); > echo '<br />'; I'm suggesting that you don't really want to use assign_by_ref. How is this example any different than: $mvar = true; var_dump($mvar); $mvar2 =& $mvar; $mvar2 = false; var_dump($mvar); The whole point of assigning-by-reference is that you are aliasing the variable as opposed to making a copy. When you assign $test_2 = $test, even though you don't do it by-reference, you are making a copy of an object that contains references. When you alter the reference (even in the copy), you necessarily alter the original var. This is the way PHP works and I don't think it implies any problems with the Smarty semantics. If you don't want that behaviour, don't use assign_by_ref. If you still want to assign_by_ref, then work around PHP's behaviour in the usual ways: $myvar = true; var_dump($myvar); echo '<br />'; $test = new Smarty; $test->assign_by_ref('myvar', $myvar); $test_2 = $test; // following is equivalent to unset($test_2->_tpl_vars['myvar']; $test_2->clear_assign('myvar'); $test_2->assign('myvar', false); var_dump($myvar); echo '<br />'; xo boots __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/