Global defined variables

Within functions

[ahmedtheking]

It's know that you can access global vars simply by adding 'global $var' within your function. But, what about a constant or defined var? How can you access that without having to pass it to a local function var?

[phparion]

I think constants also work as global variable because php determines at the last moment how to deal with the variable based on its value format.

I didn't get 'defined var' part...

[ahmedtheking]

Well you define a var like so: define(SOMEVAR,"#*$!xx");

Now, when you take this into a function:

function test () {
global SOMEVAR;
....
}

It reports an error that it's expecting a $ sign.

[phparion]

did you try using it directly without defining as global?

[dreamcatcher]

ahmedtheking,

As phparion mentioned, you don`t need to declare constants as they are already global in scope. So, just use the constant with no declaration.

function test () {
echo SOMEVAR;
....
}

dc

[edit]Thanks p, you beat me to it.

[ahmedtheking]

Ah that's fantastic! I didn't know that! Thanks guys!