Making global var from inside a function in PHP

Question

I am trying to define dynamically variables. I am using a function for this, but I don\'t know how to define the new var as global (because it never created before the function)

Answer 1

You can do it in two ways:

Make the variable global using the global keyword:

function fun1() {
        global $foo;
        $foo = 1;
}

Alternatively you can also create an new element in the $GLOBALS array:

function fun2() {

        $GLOBALS['bar'] = 1;
}

Working code

Remember that these are considered bad practice, a function should have local variables invisible outside and should get inputs through the arguments passed. You should avoid getting arguments though global variables and must completely avoid crating global variables.