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<?php function &test() { $var = array(); $var[] =& $var; return $var; }; $a = test(); $b = $a; $b[0] = 123; print_r($a); print_r($b);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0g0ID
function name:  (null)
number of ops:  13
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                                   'test'
          1        DO_FCALL                                          0  $2      
          2        ASSIGN                                                       !0, $2
   12     3        ASSIGN                                                       !1, !0
   13     4        ASSIGN_DIM                                                   !1, 0
          5        OP_DATA                                                      123
   15     6        INIT_FCALL                                                   'print_r'
          7        SEND_VAR                                                     !0
          8        DO_ICALL                                                     
   16     9        INIT_FCALL                                                   'print_r'
         10        SEND_VAR                                                     !1
         11        DO_ICALL                                                     
         12      > RETURN                                                       1

Function test:
Finding entry points
Branch analysis from position: 0
Return found
filename:       /in/0g0ID
function name:  test
number of ops:  5
compiled vars:  !0 = $var
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                       !0, <array>
    6     1        FETCH_DIM_W                                          $2      !0
          2        ASSIGN_REF                                                   $2, !0
    8     3      > RETURN_BY_REF                                                !0
    9     4*     > RETURN_BY_REF                                                null

End of function test

Generated using Vulcan Logic Dumper, using php 8.5.0


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