Problem with $_SESSION[$var]

[tmyonline]

Hi guys:

 

I'm wondering if the $_SESSION superglobal array can contain a variable.  I experience that $_SESSION['string'] works but $_SESSION[$variable] does not.

 

In my program, I need the $_SESSION to store a variable.  If I use $_SESSION['string'], it only remembers the last value when it goes through the loop.  Any ideas ?  Thanks.

[StormTheGates]

Have you tried the session with ""s?

 

$_SESSION["$variable"];

 

Not sure if it will make a difference.

[tmyonline]

Yeah, I did but it didn't make any difference!

[DarkWater]

What do you mean?  Please elaborate.

[tmyonline]

In my program, I used $_SESSION[$variable], it does not work; it does not remember the value I set it equal to.  So, I'm wondering whether $_SESSION can contain a variable or only string.

[DarkWater]

Uhh, you seem to not understand what an array is.

 

$test = "Ha, this is a test!";

$_SESSION['test'] = $test;

 

echo $_SESSION['test']; //Outputs: Ha, this is a test!

[tmyonline]

Uhh, you seem to not understand what an array is.

 

Please re-read my question again.

 

I already know $_SESSION['string'] works.  Your $_SESSION['test'] is an example that $_SESSION can contain a string.

 

My question is whether $_SESSION can contain a variable, i.e., whether $_SESSION[$variable] works because I used it in a loop like this:

 

while (...) {

  ...

  $_SESSION[$variable] = $variable;

}

 

So, my $_SESSION will be an associative array whose key values are different strings.

 

[DarkWater]

Yes, it works.  Don't use ridiculous keys though, I think they have a maximum length.

 

$key = "test";

$_SESSION[$key] = "Lololol".

echo $_SESSION["test"]; //Outputs: Lololol.

[tmyonline]

Yes, it works.  Don't use ridiculous keys though, I think they have a maximum length.

$key = "test";
$_SESSION[$key] = "Lololol".
echo $_SESSION["test"]; //Outputs: Lololol.

 

 

Have you tested your code at all ?  It's not working.  It seems that a variable cannot be used as an index of the $_SESSION array but you say yes without even testing it.

[trq]

It does work. Are you sure you have a call to session_start() prior to using the $_SESSION array?

[tmyonline]

Yes, I do.

[kenrbnsn]

Can you post the code that's not working?

 

Ken

[wildteen88]

Post the code for your loop. Variables can be used to reference array keys, as suggest by DarkWater's perfectly valid code.

 

Doing

$key = "test";
$_SESSION[$key] = "Lololol"

is the same as

$_SESSION['test'] = "Lololol"