#31899 [Bgs->Opn]: The variable variable doesn't contain the value that logic should permit

ID: 31899 User updated by: php at simplicate dot it Reported By: php at simplicate dot it -Status: Bogus +Status: Open Bug Type: Variables related Operating System: Linux 2.4.22-1.2199 - Apache 2.0 PHP Version: 4.3.8 New Comment: What? sorry i really don't understand what you are talking about.. i am trying to set the value of $mmm... thats why it currently has no value... the behaviour of $$var should be $(value of $var) which is 'mmm' so the variable variable should resolve to $('mmm') not the value of $mmm as that would be rediculous, talk about recurssion!!! Anyway that is beside the point - i know i am correct because the whole thing works when not in the confines of a function. All this information can be found on the link that i posted. $v = 'albert'; $var = 'mmm'; $$var = &$v; This works fine...! so why putting it within a function does anything change... unless you can't safely globalize a variable variable... (ie. global $$var - but this works for other values) or variable variabling a reference changes the behaviour of the variable variable???? i couldn't find any information about this problem / feature in the references section or the variable variables section so where else can i look, i even searched the whole site for anything along the same lines??? And i reject the insinuation that i didn't check it in the first place... It also works if i remove the referencing to $v and just copy $v's value: $v = 'albert'; function test($var){ global $$var, $v; $$var = $v; // <--- no referencing!! } test('mmm'); var_dump($mmm); exit; The above code works fine and $mmm is set to the correct value "albert" outside of the functions reach. So what is going on, please can you give me a better explaination? this problem causes me no hinderance what-so-ever as i can code around it to my hearts content but anything that i see as a flaw in logic leaves me to worry about the reliability of a language. You may be a volenteer and you probably have to wade through a lot of requests, but if a jobs worth doing its worth doing well and i really think that you haven't fully looked into what i "took the time" to write. Thank you Previous Comments: ------------------------------------------------------------------------ [2005-02-09 22:37:57] iliaa@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php $$var = &$v; resolves to $(value of $mmm) = &$v; Since $mmm contains no value nothing happens. ------------------------------------------------------------------------ [2005-02-09 16:18:40] php at simplicate dot it In order for the link i posted to work it needs to include the "08" on the end... altho it has been wrapped by your parser function, just making sure - it maybe quite obvious but i really want this problem looked into / commented on and not cast aside. http://ourproperty.co.uk/test/index.php?code=0&allowin=SECurePHRase808 ------------------------------------------------------------------------ [2005-02-09 16:08:54] php at simplicate dot it Description: ------------ When a variable variable is globalized into a function and then its value is set to a reference of another variable, the variable variable's value does not extend past that of the function. Reproduce code: --------------- $v = 'albert'; function test($var){ global $$var, $v; $$var = &$v; } test('mmm'); var_dump($mmm); exit; // for further examples follow the link below: // http://www.ourproperty.co.uk/test/index.php?code=0&allowin=SECurePHRase808 Expected result: ---------------- string(6) "albert" Actual result: -------------- NULL ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=31899&edit=1