Question

i’d like to set up some global variables for storing several things.
i’ve tried it like this:

function init_web()
{
    $webname = "myweb";
    $web['webname'] = $webname;
    $web['server_root'] = $_SERVER['DOCUMENT_ROOT']."/$webname/"; 
    $web['lang']="en";
}

the problem is that i can’t access those variables inside of functions ..
i’ve tried using global $web; but didnt help.

what’s the trick to get it global?

thanks

Answer 1

While you’ll get the usual “global variables are bad” crying, here’s the basics:

$web = array(); // define the var at the "top level" of the code tree, outside any functions/classes.
function init_web() {
    global $web; // make it visible in the function
    $web['lang'] = 'en'; // make some settings
}

basically, you had it, but hadn’t defined the variable outside the function. Just saying ‘global’ within the function won’t magically create one outside the function – it already has to exist before you try to “internalize” it to the function and change/access its contents.