Using global vars within a function in PHP the way you do it in Javascript

Question

I have a function that uses lots of global vars and arrays - e.g.

$a=1;
$b[0]=\'a\';
$b[1]=\'b\';
$c=\'Hello\';

function foo() {
 echo \"$a 
       $b[0] 
              


        

Answer 1

You can access global vars with global keyword:

global $a=1;
global $b[0]='a';
global $b[1]='b';
global $c='Hello';

function foo() {
  global $a, $b, $c;
  echo "$a 
  $b[0] 
  $b[1] 
  $c";
 }

Otherwise you can use predefined $GLOBALS array:

function foo() {
 echo "$GLOBALS['a'] 
 $GLOBALS['b'][0] 
 $GLOBALS['b'][1] 
 $GLOBALS[c]";
}

Here you have more info:

http://php.net/manual/en/language.variables.scope.php