Function Question

[shane18]

If I have a variable.... $_SESSION["USER_ID"];

 

to use that data in a function would i had to include it like this

 

blah($_SESSION["USER_ID"],0,24,53,"bbblllaaahhh");

 

cuz don't functions only have access to whats sent to them or is created in them?

[Brandon_R]

You can pass the value as an argument or globalize it.

[shane18]

globalize it? is $_SESSION a global? and how can u globalize something?

[Brandon_R]

Oh i thought you meant a normal variable created outside the function and you want access to it inside the function,

 

Session is just one of the superglobals and can be referenced in the globals array.

 

$GLOBALS['_SESSION']['user_id']

 

would contain the same as

 

$_SESSION['user_id']

 

can be used anywhere, ie in functions etc

[oni-kun]

If I have a variable.... $_SESSION["USER_ID"];

 

to use that data in a function would i had to include it like this

 

blah($_SESSION["USER_ID"],0,24,53,"bbblllaaahhh");

 

cuz don't functions only have access to whats sent to them or is created in them?

 

$_POST, $_SESSION, $_GET, $_REQUEST, $_SERVER are all 'super globals' already and don't need to be passed through to the  function, You don't have to worry about that.

 

EDIT: Brandon_r, and OP, read this: http://php.net/manual/en/language.variables.predefined.php It's of relevance.

[shane18]

Thanks, got it all figured out!