Re: [PHP] Where am i screwing up?

oh, don't forget, '$key' will not get evaluated. "$key" will.



John Manko wrote:

> Can someone correct me on this if i'm wrong.......
>
> try (meaning, I think that $vars as $keys will put the value into
> $key, not the key itself):
>
> foreach ($vars as $key=>$value) // clear all previous sessions
> {
> if(isset($_SESSION['$key']))
> {
> unset($_SESSION['$key']);
> }
> }
>
>
>
>
> Ryan A wrote:
>
>> Hi,
>> I am just screwing around and getting used to arrays with a "foreach"
>> thanks
>> to Michael,Jan and Evan from this list and have run into problems.
>>
>> My requirment is pretty simple (code is below too)
>> 1)unset all the sessions that might have been set with reference to the
>> hardcoded array ($vars)
>> 2)if any checkboxes have been set from the previous form then set that
>> session
>> needless to say, its not working, am too new at this to know where my
>> fault
>> is so any help is greatly appreciated.
>>
>> I have even added a few comments as to what i was thinking....tell me
>> if i
>> was wrong.
>>
>> **************Start code************************
>> <?php
>> $vars = Array('noPlatform','noPrice','noSfee','noSpace'); // this
>> corresponds to the "name=" of each checkbox
>>
>> foreach ($vars as $key) // clear all previous sessions
>> {
>> if(isset($_SESSION['$key']))
>> {
>> unset($_SESSION['$key']);
>> }
>> }
>> echo "done1"; //just checking program execution
>>
>> foreach ( $vars as $vvvv ) // if any checkboxes were checked create a
>> session for them
>> {
>> ${$vvvv} = ( isset($_POST[$vvvv]) ? 1 : 0 );
>>
>> if($vvvv==1)
>> {
>> $_SESSION[$vvvv];
>> echo $vvvv; //getting no output from here...I just put it here for
>> testing
>> }
>> }
>> echo "done2"; //just checking program execution
>> ?>
>>
>> ****************End code************************
>>
>> Thanks in advance,
>> -Ryan
>>
>>
>>
>>
>
>
>