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<?php $x = new stdClass; $y = $x; $y->one = 42; if ($x->one != $y->one) { echo "Copied by value\n"; } else { echo "Copied by reference\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 13
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/r7d2N
function name:  (null)
number of ops:  14
compiled vars:  !0 = $x, !1 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    3     3        ASSIGN                                                   !1, !0
    4     4        ASSIGN_OBJ                                               !1, 'one'
          5        OP_DATA                                                  42
    5     6        FETCH_OBJ_R                                      ~7      !0, 'one'
          7        FETCH_OBJ_R                                      ~8      !1, 'one'
          8        IS_NOT_EQUAL                                             ~7, ~8
          9      > JMPZ                                                     ~9, ->12
    6    10    >   ECHO                                                     'Copied+by+value%0A'
    5    11      > JMP                                                      ->13
    8    12    >   ECHO                                                     'Copied+by+reference%0A'
    9    13    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.85 ms | 998 KiB | 13 Q