全局变量PHP

Question

I have some problems with PHP global variables.

can i define global variables in the function and use that in another function?

can i Define global variables in another global variables and use second global variable?

can i define global variables in a function, and use this function in another functions?

how about this question?

global $y; // $y = 5

$x = 10 * $y; // $x = 50

function numbers() {

    global $x;

    echo $x; // $x = 0;

}

Answer 1

Please find a nice article on Global variables in php - It will tell you about various global variables that exist in Php Language and how to use and access these variables and their purpose.

Reference : https://www.w3elearners.com/php/global-variables/