Re: how to get var name and value from function?

On 4/16/07, Ford, Mike <M.Ford@leedsmet.ac.uk> wrote:

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.

but $_GET and $_POST are also global variables, so you transfer variables from one global variable to another :)

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! ;) ;)

You can also return an array ;) I mean to say returning multiple variables (not arrays)

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

Never knew there was an alternative syntax... (in all these years...) Of course you would (try to) give working code, but you could've be confused by other programming languages :) Tijnema