3v4l.org

run code in 500+ PHP versions simultaneously
<?php namespace Foo; call_user_func(function (array &$ref) {}, 'not_an_array_variable');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vNN9X
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_NS_FCALL_BY_NAME                                        'Foo%5Ccall_user_func'
          1        DECLARE_LAMBDA_FUNCTION                              ~0      [0]
          2        SEND_VAL_EX                                                  ~0
          3        SEND_VAL_EX                                                  'not_an_array_variable'
          4        DO_FCALL                                          0          
          5      > 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/vNN9X
function name:  {closure:/in/vNN9X:3}
number of ops:  2
compiled vars:  !0 = $ref
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
          0  E >   RECV                                                 !0      
          1      > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
157.27 ms | 1571 KiB | 9 Q