Get variables from the outside, inside a function in PHP

Question

I\'m trying to figure out how I can use a variable that has been set outside a function, inside a function. Is there any way of doing this? I\'ve tried to set the variable t

Answer 1

See http://php.net/manual/en/language.variables.scope.php for documentation. I think in your specific case you weren't getting results you want because you aren't assigning the $var + 1 operation to anything. The math is performed, and then thrown away, essentially. See below for a working example:

$var = '1';

function addOne() {
   global $var;
   $var = $var + 1;
   return $var;
}