Program %s/flow_break_interference.php loaded. Type '[r]un' or '[c]ontinue' to go.
b flow_break_interference.php:15
Breakpoint 1 set on line 15 of flow_break_interference.php
But wont break until file flow_break_interference.php has been loaded.
b flow_break_interference.php:27
Breakpoint 2 set on line 27 of flow_break_interference.php
But wont break until file flow_break_interference.php has been loaded.
c
int(8)
Breakpoint 1 reached at genFoo$continuation() on line 15 of %s/flow_break_interference.php
  14   // then we'll execute that opcode (load $a) before stopping.
  15   yield $z+1;
  16   error_log('Finished in genFoo');

b c 1
Breakpoint 1 cleared on line 15 of flow_break_interference.php
o
Break at main() on line 23 of %s/flow_break_interference.php
  22   foreach (genFoo(1) as $x) {
  23     var_dump($x);
  24   }

c
int(1)
Finished in genFoo
Breakpoint 2 reached at main() on line 27 of %s/flow_break_interference.php
  26   // chaning $a will show in $z.
  27   $z = $a;
  28   var_dump($z);

p $a
42
$a = 7

n
Break at main() on line 28 of %s/flow_break_interference.php
  27   $z = $a;
  28   var_dump($z);
  29 }

p $z
7
p $a
7
q