RE: [PHP] how to get var name and value from function?

On 16 April 2007 16:18, Tijnema ! wrote: > On 4/16/07, Ford, Mike <M.Ford@leedsmet.ac.uk> wrote: > > On 14 April 2007 13:16, Afan Pasalic wrote: > > > > > Tijnema ! wrote: > > > > On 4/14/07, Afan Pasalic <afan@afan.net> wrote: > > > > > function value2var($array, $print=0) > > > > > { > > > > > foreach ($_POST as $key => $value) > > > > > > > > I think you should change above line to : > > > > > > > > foreach ($array as $key => $value) > > > yup! it's print error. I meant $array. > > > > > { > > > > > ${$key} = $value; > > > > > echo ($print ==1) ? $key.': > > > > > '.$value.'<br>'; > // to test > > > > > results and seeing array variables and values > > > > > } > > > > > } > > > > > > > > > > value2var($_POST, 1); > > > > > > > > > > but, I don't know how to get info from function back to > > > > > script?!?!? :-( > > > > > > > > Uhm, it's not even possible when you don't know the > keys i believe. > > > after 2 hours of testing and research I realized this too, but > > > want to be sure. :-( > > > > If you really *must* do this yourself (but others have > pointed out the folly of it), this would do it: > > > > function value2var($array) > > { > > foreach ($array as $key => $value) > > { > > $GLOBALS['$key'] = $value; > > } > > } > > What's the sense in above function? you're putting the variables from > 1 array in another... you could use array_merge for this. > But even then it's quite useless... No, not "just another array" (although I agree about the function being pretty useless!) -- $GLOBALS is a superglobal array that contains a reference to every variable defined in the global scope, so that accessing $GLOBALS['var'] from anywhere is the same as accessing $var in the global scope. It's a way of referencing global variables without having to use a "global $var" statement. I was simply pointing out how you can to "get info from function back to script" "when you don't know the keys", which you'd just said you believed was impossible! ;) ;) Having done which, I proceeded to point out that: > > ... or, alternatively, rather than defining you own > function, use extract() (http://php.net/extract) with one of > the overwrite safety options to avoid blobbing existing variables. > > That's a better idea. :) ... Precisely ;) > > foreach (array('name', 'address', 'email', > > 'setting1', 'setting2') > > as $key): $GLOBALS[$key] = $array[$key]; > > endforeach; > > endforeach? never heard of that statement before, does it > really exist in PHP? Of course -- would I give you non-working code? (Well, on purpose, anyway! ;) See http://php.net/manual/en/control-structures.alternative-syntax.php Cheers! Mike --------------------------------------------------------------------- Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning & Information Services, JG125, James Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS, LS6 3QS, United Kingdom Email: m.ford@leedsmet.ac.uk Tel: +44 113 812 4730 Fax: +44 113 812 3211 To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm