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<?php namespace { function &call_user_func_array_userland($callable, array $args) { return $callable(...$args); } } namespace Bar { $foo = 'foo'; $bar = &call_user_func_array_userland(function &() use (&$foo) { return $foo; }, []); $bar = 'bar'; echo $foo . PHP_EOL; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/D0Chh
function name:  (null)
number of ops:  13
compiled vars:  !0 = $foo, !1 = $bar
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   13     0  E >   ASSIGN                                                       !0, 'foo'
   15     1        INIT_NS_FCALL_BY_NAME                                        'Bar%5Ccall_user_func_array_userland'
          2        DECLARE_LAMBDA_FUNCTION                              ~3      [0]
          3        BIND_LEXICAL                                                 ~3, !0
   17     4        SEND_VAL_EX                                                  ~3
          5        SEND_VAL_EX                                                  <array>
   15     6        DO_FCALL                                          0  $4      
   17     7        ASSIGN_REF                                                   !1, $4
   19     8        ASSIGN                                                       !1, 'bar'
   21     9        FETCH_CONSTANT                                       ~7      'Bar%5CPHP_EOL'
         10        CONCAT                                               ~8      !0, ~7
         11        ECHO                                                         ~8
   23    12      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
Return found
filename:       /in/D0Chh
function name:  {closure:/in/D0Chh:15}
number of ops:  3
compiled vars:  !0 = $foo
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   15     0  E >   BIND_STATIC                                                  !0
   16     1      > RETURN_BY_REF                                                !0
   17     2*     > RETURN_BY_REF                                                null

End of Dynamic Function 0

Function call_user_func_array_userland:
Finding entry points
Branch analysis from position: 0
Return found
filename:       /in/D0Chh
function name:  call_user_func_array_userland
number of ops:  8
compiled vars:  !0 = $callable, !1 = $args
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
    6     2        INIT_DYNAMIC_CALL                                            !0
          3        SEND_UNPACK                                                  !1
          4        CHECK_UNDEF_ARGS                                             
          5        DO_FCALL                                          1  $2      
          6      > RETURN_BY_REF                                                $2
    7     7*     > RETURN_BY_REF                                                null

End of function call_user_func_array_userland

Generated using Vulcan Logic Dumper, using php 8.5.0


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