simple session variable output 1

[Streetdaddy]

i'm *very* new to php, so please tell me if the following should work:

inc.php
<?php
function go() {
session_start();
session_register(&quot;test&quot;
$test = &quot;hello world&quot;;
echo &quot;output from inc.php - $test<br>&quot;;
}
?>

file.php
<?php
include 'inc.php';
go();
echo &quot;output from file.php - $test<br>&quot;;
?>

file.php gives the output:

output from inc.php - hello world
output from file.php -

Is there some simple reason why file.php can't output $test? I mean, is it something simple in the code or is it a config issue? Any help appreciated...
Miles

Those Micros~1 guys sure know what they doing!

 

[sonnysavage]

It has to do with variable scope. The PHP Manual does a much better job at explaining it than I could:

http://www.php.net/manual/en/language.variables.scope.php

 

[sleipnir214]

It may be because your session variable is being set in a subroutine. The main app can't get to the variable because it is in a lower scope.

Take a look at:

http://www.php.net/manual/en/language.variables.scope.php

and see if it doesn't clarify things. Perfection in engineering does not happen when there is nothing more to add. Rather it happens when there is nothing more to take away.

 

[sonnysavage]

...simultaneous posting here!

Also, with session variables, I recommend using the $_SESSION &quot;autoglobal&quot; array. In your case, you'd set it like this:
inc.php

<?php
    function go() {
        session_start();
        $_SESSION[&quot;test&quot;] = &quot;hello world&quot;;
        echo &quot;output from inc.php - &quot;.$_SESSION[&quot;test&quot;].&quot;<br>&quot;;
    }
?>

file.php

<?php
    include 'inc.php';
    go();
    echo &quot;output from file.php - &quot;.$_SESSION[&quot;test&quot;].&quot;<br>&quot;;
?>

When you call

session_start()

it will re-load the

["test"]

key and the value it is set to.

This method also has much better security.

http://www.php.net/manual/en/ref.session.php

http://www.php.net/manual/en/reserved.variables.php

 

[hads]

Thanks for the tip sonnysavage, you deserve a star.

I'm new to PHP and have been having trouble with some session code (session_register etc.) that works on my WIN2K box but not on my linux box. Its had me scratching my head for a bit but using the 'autoglobal' $_SESSION has made things work perfectly (as perfect as can be anyway

Thanks muchly.
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