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<?php function test(&$arr = array()) { $GLOBALS['g_arr'] =& $arr; $arr[] = 1; var_dump($arr); } test(); var_dump($g_arr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8B8q5
function name:  (null)
number of ops:  6
compiled vars:  !0 = $g_arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'test'
          1        DO_FCALL                                      0          
    8     2        INIT_FCALL                                               'var_dump'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                                 
          5      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8B8q5
function name:  test
number of ops:  10
compiled vars:  !0 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV_INIT                                        !0      <array>
    3     1        FETCH_W                      global              $1      'GLOBALS'
          2        FETCH_DIM_W                                      $2      $1, 'g_arr'
          3        ASSIGN_REF                                               $2, !0
    4     4        ASSIGN_DIM                                               !0
          5        OP_DATA                                                  1
    5     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
    6     9      > RETURN                                                   null

End of function test

Generated using Vulcan Logic Dumper, using php 8.0.0


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