Re: HTTP_POST_VARS gives odd results

On Tue, 28 Nov 2000, Janet Valade wrote: > I have the following code which doesn't seem to give me the results I > expect. > > if ($testvar == "other") { > $newvalue1="string1"; > $newvalue2="string2"; > $HTTP_POST_VARS[addr] = $newvalue1; > $HTTP_POST_VARS[city] = $newvalue2; > } > > reset($HTTP_POST_VARS); > > while (list($key,$value) = each($HTTP_POST_VARS)) { > echo "key, value = $key, $value<Br>"; > > if (empty($$key) ) { > do stuff; > else > do other stuff; > } > } > > The above while loop works perfectly without the code before it. However, > when I add the code before it that changes the values of some of the > elements in HTTP_POST_VARS, it no longer works. The values were changed > successfully, the echo in the loop shows the correct changed values of > string1 and string2 for $key,$value. However, when it gets to the if (empty) > statement, it is evaluated as empty (its previous value) and do stuff is > done, rather than do other stuff. The elements of HTTP_POST_VARS that were > not changed still are evaluated correctly by the if empty statement; only > the changed elements are evaluated incorrectly. Clearly, I am not > understanding something about HTTP_POST_VARS. Can someone tell me what I am > doing wrong? > > Janet > When register_globals is on, anything that comes through $HTTP_*_VARS is registered as global only once when the script starts. Anything that gets assigned to the arrays after the script starts is ignored. Quick question: Why do you even have if(empty($$key)) in there? Why don't you just use if(empty($val))? -- Ignacio Vazquez-Abrams <ignacio@openservices.net>