globals in nested functions

[alecks]

Having this problem, could someone offer a way to do this please

The situation:

 

function test1(){
   global $b;
   echo $b;
}

function test(){
   $b = "foo";
   test1();
}

test(); // nadda

 

thanks

[rab]

function test1($b='Nothing?'){
   echo $b;
}

function test(){
   $b = "foo";
   test1($b);
}

test();

 

Or

function test1(){
   global $b;
   echo $b;
}

function test(){
   global $b;
   $b = "foo";
   test1();
}

test(); // nadda