Question

I have 2 php files. I am unable to get B’s global variable from A’s static method:

A.php

class c_A
  { public static function f_A()
      { include_once( "B.php" ) ;
        print f_B() ;
      }
  }
c_A::f_A( ); // only prints "B : "

B.php

$gvs = "global variable from B" ;

function f_B()
  { return "B : " . $GLOBALS[ "gvs" ] ;
  } 

Answer 1

$GLOBALS[ "gvs" ] is empty because you calling B.php inside function. So $gvs variable is not declaring as global variable. If you include B.php outside of class at A.php you will get result:

A.php

include_once( "B.php" ) ;
class c_A
  { public static function f_A()
      { 
        print f_B() ;
      }
  }
c_A::f_A( ); // will prints "B : global variable from B"