NYCPHP Meetup

[Brian Pang]

for ($i = 1; $i <= 10; $i++) {
    if (isset($_SESSION[$i.'_fair_name'])) {
        echo ("success");
    }
}

I think that'll work

or this

$_SESSION[${$i.'_fair_name'}]

check the manual under "variable variables"


> Hi all,
> 
> I'm trying to avoid a bunch of if/then statements by looping through 
> $_SESSION.  I hit a roadblock that I can't seem to get around.  Here is 
> a simple piece of code which I think gets to the heart of the problem:
> 
> $begin=1;
> if(isset($_SESSION['$begin_fair_name']))
> {
>    echo "success";
> }
> 
> Of course, this works:
> if(isset($_SESSION['$1_fair_name']))
> {
>    echo "success";
> }
> 
> BUT, I have between 1 and 10 fair_name fields (i.e. 1_fair_name, 
> 2_fair_name) coming from the form.  It would be much more efficient if 
> I can loop through and perform operations as opposed to a bunch of 
> if/then statements referring to specific fair_name fields.  Obviously 
> the problem is with using a variable inside the array and I haven't 
> been able to figure out how to work around it.
> 
> Trying to keep it brief here, but please let me know if further details 
> would be helpful.  I would appreciate any tips or suggestions.
> 
> Thanks!
> 
> -Aaron
> 
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