3v4l.org

run code in 500+ PHP versions simultaneously
<?php (function() { $var = 123; $$var = "123"; print_r(get_defined_vars()); })();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RWpUJ
function name:  (null)
number of ops:  4
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   DECLARE_LAMBDA_FUNCTION                              ~0      [0]
    7     1        INIT_DYNAMIC_CALL                                            ~0
          2        DO_FCALL                                          0          
          3      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RWpUJ
function name:  {closure:/in/RWpUJ:3}
number of ops:  9
compiled vars:  !0 = $var
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                       !0, 123
    5     1        FETCH_W                          local               $2      !0
          2        ASSIGN                                                       $2, '123'
    6     3        INIT_FCALL                                                   'print_r'
          4        INIT_FCALL                                                   'get_defined_vars'
          5        DO_ICALL                                             $4      
          6        SEND_VAR                                                     $4
          7        DO_ICALL                                                     
    7     8      > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
154.68 ms | 1987 KiB | 10 Q